The crux is MOD and NB want and need Mumsnet to be wholly and unquestionably Team Instamama and they're resentful this isn't happening. Mumsnet users represent their core demographic. Mumsnet threads make the papers.
A quick google shows several articles about Instamums being slammed on Mumsnet in Sep 2017 for shameless self promotion.
Mumsnet users in general are sharp and questioning and yes, wittily mocking when there is good reason to, and MOD and NB don't like it. They want us to fawn unconditionally. We don't. And when we don't they report - which MOD has admitted to doing.
MN removes stuff they agree is against talk guidelines but they are actually v generous in this. . Just look at the posts on this thread that have been removed. In the one of mine that was, I was talking about a v well known Instamum and called out how there was a discrepancy btw her pretence that she was given something as an act of love by her OH and the fact it was gifted. I said, by using a different metaphor, that she wasn't the brightest bulb. Other posts removed were joking about the effects of NB sitting on the steps for ages.
It's cool that they don't like our satire and scorn. It's not cool that they want to shame Mumsnet into shutting down any sharp questioning of the ways they publicly market and monetise products, themselves and their families.
NB even said on her post that she felt MN should remove anonymity. How batshit is that. Completely self-serving batshit, that's what. Nevermind that this anonymity allows vulnerable women to question whether they're being abused or ask v personal health questions, or to open up about how low they feel. No, it's all about the Instamums.