"They want subscriber numbers which can then be punted to advertisers."
That is an argument in favour of an anonymous donation system: Premium Members see fewer ads.
On the original thread on "Site Stuff", on this one on FWR and on similar threads on other Mumsnet Boards, there are members all saying the same thing:
"I want to donate anonymously to keep Mumsnet going but I will not sign up for anything that links my bank details or other identifying information to my Mumsnet account."
Unless I have missed something, Mumsnet has not even acknowledged the repeated requests for a response to the offers of "no strings" donations.
Members are volunteering to lob donations in Justine's lap, often saying that they have no interest in the supposed Premium "benefits" of fewer adverts (who cares when anyone who does not want to see them can use an Ad Blocker?) and an "Edit Button" (IMHO an extremely stupid idea to add an Edit Post feature at all and even more stupid as a "Premium Feature").
I really cannot get my head around the fact that Mumsnet is throwing away all that goodwill by completely ignoring members who are offering to donate anonymously, wanting nothing extra in return. Some people are asking to see specific improvements but many are not.
Even if Mumsnet just kept repeating a standard "Thank you but . . . " message it would be better than nothing.
For my part, the Talk Boards can stay as basic as they are - if it ain't broke don't fix it and, for the most part, it ain't broke - Advanced Search, "Threads I'm On" and "Watched Threads" could certainly do with improvement. However, I get that, for some, the appearance of "being up to date" trumps functionality and ease of use (if that sounds snarky, sorry, it's not meant to be!).
The annoying "special rules", perceptions of partisan Moderation, banning of members who contributed valued content need IMHO to be balanced against a bigger picture: the public platform and influence that Mumsnet provides.
Mumsnet in numbers
8 million user posts per year
1.2 billion page views per year
23 million visits per month
10 million unique users per month
7.22 minutes average dwell time
75% of users in full-time or part-time employment
78% of users are aged between 26-45
91% of users have children
Source: SimilarWeb/Google Analytics
More at: www.mumsnet.com/info/advertising
Mumsnet is going to have access to far more detailed site stats and analytics than can be found on various free sites, such as those that I am guessing Vitreous is relying on for data.
Privacy policy
Posting on Mumsnet Talk
" . . . posts on Mumsnet Talk are visible to anyone on the internet.
. . . We also provide an anonymised copy of all Talk posts to a handful of carefully chosen organisations so that they can analyse social trends. None of your personal information is ever shared and we remove Mumsnet usernames before sharing this information.
. . . We provide a copy of all Talk posts to a small number of organisations for analysis or to create software analysis tools to analyse brands and sentiment towards topics. Your personal data and username is not included in the copies of posts that we provide to these organisations."
More at: www.mumsnet.com/info/privacy-policy
Mumsnet in the Media
Links to news stories and articles featuring or referencing Mumsnet, including Talk Board contributions:
www.mumsnet.com/media
Online surveys and product tests
"Welcome to the home of Mumsnet Insight. We'd love to hear what you have to say: about various topics, products, services, brands and much more."
www.mumsnet.com/online-surveys-product-tests
Mumsnet Webchats
Previous webchats with Politicians and others that are topic-based. Irritating restrictions on questions but I find it hard to believe that MPs, Party Leadership candidates and others listed here would consider it worth their time and effort to participate in a webchat hosted on a sub-Reddit.
www.mumsnet.com/Talk/mumsnet_live_events
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Ensuring that User Names cannot be easily linked to Bank Details is crucial and lots of people have asked for Pay Pal to be added as an option. Is Pay Pal more secure than Stripe? I don't know but there seems to be a presumption in these requests that it is.
The Premier Membership system makes it relatively easy for determined hackers to identify UserNames that have signed up, eg. if people decide to take advantage of the promised "Edit Post" function. Existing members advertising that they have signed up makes it even easier to target people.
(Dyrne - nice workaround!)
Being realistic, how is Mumsnet supposed to ensure that it never again hires or keeps anyone who would doxx members or share their personal data? Put all employees and candidates through MI6/Stasi level vetting procedures? That level of vetting never stopped double-agents infiltrating MI6 anyway.
There is plenty of evidence that Mumsnet is targeted by men who object to women talking to each other and who would love to see it closed down. It is a bit odd to claim that Justine is unaware of this when she has been targeted personally:
"Mumsnet's co-founder suffers 'swatting attack'"
BBC 19 August 2015
"It's challenging to build a website that can stand up to a determined attacker, while still being cost-effective to run and easy to use," commented security expert Dr Steven Murdoch from University College London.
"These types of incident will keep on happening, so this is a good reminder to not use the same password on multiple websites and be cautious about what information you give out online."
www.bbc.co.uk/news/technology-33985706
"Mumsnet hackers publish 3,000 passwords and call armed police to CEO Justine Roberts' house"
International Business Times August 19, 2015
"A hacking collective who took responsibility for launching a cyberattack on the Mumsnet parenting website and sending armed police to its owner's house has published a database claimed to contain 3,000 user passwords. The group, called Dad Security, published a list which appears to show the user names, IP addresses and passwords of the users, plus the email addresses and passwords of site administrators.
The website and its forums were attacked on 11 August when they were knocked offline for several hours; at least 11 user accounts were compromised. Simultaneously, Mumsnet founder Justine Roberts was 'swatted' in an incident where armed police were wrongly called to her London home.
The attack began with a DDoS (distributed denial of service) attack on the website. Common among online hacking collectives, this attack bombards a website with traffic until it is knocked offline. The site was restored by 10am the next morning, 12 August.
In the aftermath it was found that at least 11 user accounts were compromised; this is thought to have been through phishing attacks, however. Roberts said on 19 August that no data was stolen during the DDoS attack.
Swatting
Hours after the attack began, an armed response team from the Metropolitan Police arrived at Roberts' house in Islington, North London, following reports of a gunman prowling the local area and gunshots being heard. This was revealed to be an act of swatting, where a fake distress call is made with the intention to get armed police to the victim's house. A second incident saw armed police arrive at the house of someone who interacted with Dad Security over Twitter.
Posting on Mumsnet, Roberts said: "An armed response team turned up at my house last week in the middle of the night, after reports of a gunman prowling around. A Mumsnet user who engaged with @DadSecurity on Twitter was warned to 'prepare to be swatted by the best' in a tweet... after which police arrived at her house late at night following a report of gunshots. Needless to say, she and her young family were pretty shaken up. It's worth saying that we don't believe these addresses were gained directly from any Mumsnet hack, as we don't collect addresses. The police are investigating both instances."
. . . "Dad Security: 'One of our members is a moderator of Mumsnet' "
More at:
www.ibtimes.co.uk/mumsnet-hackers-publish-3000-passwords-call-armed-police-ceo-justine-roberts-house-1516092
I would love to know if that claim, that a Mumsnet Mod was a member of the hacking collective, was discovered to have any foundation (or relevance) and if anyone was ever prosecuted in connection with these incidents.
There are plenty of reasons to criticise Mumsnet generally and the Premier Membership plea from Justine in particular but asking "Who would benefit and who would lose if Mumsnet folded?" is a rational starting point when considering a response.
Thank you to those who posted links to these threads - they are from before I became a member and I had not seen them before and they cheered me up! 
"Tell MNHQ why you use Mumsnet" Sept 2018
www.mumsnet.com/Talk/site_stuff/3377940-Tell-MNHQ-why-you-use-Mumsnet
"Lurkers of FWR, pop in and say Hi!" Sept 2018
www.mumsnet.com/Talk/womens_rights/3380184-Lurkers-of-FWR-pop-in-and-say-Hi