[lukan]

"You should be going somewhere else. Another Matrix instance, or at the very least another room, and you will be fine."

Well, but I never decided to hang around for longer. Maybe it is because the moderation tools are simply lacking? I would miss the option of not restricting certain users to send pictures in a group.

[johnisgood]

I am not sure if it is currently possible in Matrix, but it is not a bad idea to be able to restrict sending pictures (among other things), I agree.

[lukan]

I just read some complaints with links in sibling comments and sadly no, not possible. Maybe even hard to implement, because of the protocol.