I remember artist tumblr in the 00's. Participated, then moved over to twitter in the 10's before I got sick of it. This looks like another continuation of that same community.
They can do what they like, but this reeks of the exact same kind of drama and mobs that, for example, drives fanartists to attempting suicide because they painted a character's skin a shade too light. (Zamii070, if you're curious.)
These sorts of communities form an echo chamber that, frankly, can be absolutely horrible for kids. Yeah, they can do what they want in their house, but I'm staying far the fuck away.