Kiwi Farms is a bit like the inverse of here IMO - most of it is just people being nasty, but a couple of threads have their own little micro-communities with some interesting discussion. I found them because there's a relatively well-known youtuber I
really can't stand who has a load of adoring fans, and it seemed to be the only place on the internet where there were other people who had the same objections. The thread got pretty long and often digressed into stuff like women's rights and how much all the posters love Phoebe Waller-Bridge, it was fun (if also OTT offensive, because that's just their forum culture).
I've been on MN since about 2010 and would say I spend quite a bit of time on there, but somehow a lot of the drama seems to pass me by and from time to time it feels like I'm a parallel universe - I've never even heard of Seafour and have no idea what you're all on about

I don't know who the entertaining troll with the ridiculously unbelievable life stories is either, or that Cod (c0d?) troll who everyone on there is always accusing people of being.