Justine posted this on a low-traffic thread in AIBU and I think it deserves a wider audience than it is currently getting, especially as it is asking posters to report low-level sniping and pile-ons. Perhaps a bigger announcement is planned, I don't know.
"Thanks for raising this - it's something we've been discussing internally as we've noticed the same shift you’re describing and we agree it’s something we need to get a much firmer grip on. Debate is part of Mumsnet’s DNA, but unnecessary meanness isn’t, and it helps absolutely no one.
We’ve already put a plan in place to tighten things up. It’s not just about deleting the really obvious personal attacks, but tackling the low-level sniping and pile ons that drain the life out of threads and discourage people from posting in the first place. That means more proactive involvement from us earlier in a thread, not just sweeping up afterwards.
One thing that really helps is reporting. There are around 25,000 posts a day on here, so we really don’t see that much in real time. If something feels off, please do report it. We promise to read things in context and we’d much rather step in early than let a thread spiral.
Most people on here genuinely want to give support or perspective. When that gets drowned out by needless nastiness, everyone loses. So thank you to everyone who’s raised this. We hear you, we agree with you, and we’re working on it."
https://www.mumsnet.com/talk/am_i_being_unreasonable/5442610-the-current-state-of-mn-and-how-do-i-stop-reading?reply=148524522&utm_campaign=thread&utm_medium=share