I posted on Mumsnet for a while but didn't last long. The final straw was when they ripped apart a poor poster who was upset about not being able to see her partner at Christmas due to Covid restrictions and being in a long distance relationship. They all piled on telling her if they had a long distance relationship it wasn't real, they couldn't possibly love each other if neither of them were prepared to uproot and move to be with the other, how very date she suggest she was being hard done to etc. I was in a similar situation and it stung me to the core that they were being so vile.
I couldn't be done with all the DD, DS, DH, DDog etc, name changing because the post was "outing", and generally being very vague about where they lived (a small Northern town, handy for 2 nearby cities). Vagueness in general really, instead of giving actual examples they'd say things like "we gave our DD a traditional name, think Victoria Georgina" or the inability to talk about their DH hobbies (we all knew it was either golf or cycling but they could never admit it).
There were a few good wind up threads but some posters for far too invested in them.