MN has a terrible habit of publishing the html of links to archived content, meaning they look 'suspicious' and often are not clickable.
Even more oddly, posting a shortened url still results in the html of the archive address.
This isn't even consistent - sometimes the whole clickable url appears amongst the code, sometimes only the source part is - which defeats the purpose of posting archived copies of paywalled content.
Example today:
https://www.mumsnet.com/talk/politics/5529443-kings-speech-labours-ghastly-plans-to-destroy-the-uk-or-something
Just why???!