I've seen individual instances like that, but ofc ymmv. Curate what you do not enjoy, and maybe consider switching instances even if need be, to get something acceptable to use. Life is too short to waste your time otherwise - there will always be trolls, so let them troll, but you don't have to choose to share the same space as them!

Although ofc some amount of that is going to happen no matter where you go, so it's a matter of degree (and also of kind, in terms of new levels of severity) depending on your instance, the magazine you are in, etc. Even so, blocking can work wonders for someone who simply ruins every single conversation they are involved in without ever contributing positively. It is not your responsibility to help train everyone around you to live life, if you do not want to! It is nice to have choices, sometimes:-).