I know the matrix honeserver I use has taken our recommendations to NOT cache images from matrix.org due to their non-existent moderation. And the admin put out a bulletin to also recommend disable downloading images as well.
There's also the split room bug (feature?) that allows banned users to still be in rooms where the honeserver doesnt ban them. And then, distributes connection shows ongoing banned content (primarily, you guessed it, CSAM) and the better-moderating admins can't do anything about it.
I'm basically in a few well moderated rooms (Gnuradio, other topics). They do extraordinarily well in not getting many trolls, and for garbage collection.
The only one we're seeing spammed is for some cryptocurrency site Liquid something. But its just commercial spam.
There's also the split room bug (feature?) that allows banned users to still be in rooms where the honeserver doesnt ban them. And then, distributes connection shows ongoing banned content (primarily, you guessed it, CSAM) and the better-moderating admins can't do anything about it.
I'm basically in a few well moderated rooms (Gnuradio, other topics). They do extraordinarily well in not getting many trolls, and for garbage collection.
The only one we're seeing spammed is for some cryptocurrency site Liquid something. But its just commercial spam.