From a technical perspective, how much would an image need to be changed before the hash no longer matched? I've heard of people including junk .txt files in repacked and zipped pirated games, movies, etc., so that they aren't automatically flagged for removal from file sharing sites.
I am not a technical expert by any means, and I don't even use Apple products, so this is just curiosity.
Most instances also defederated from lemmygrad (commies) so its not generally politically left either.
IMO, Stalinists aren't exactly tolerant either. You're still talking about a totalitarian and authoritarian viewpoint, even if they're on the left on economic matters.
IMO, if your point is to make a community welcoming, then you have to get rid of intolerant voices. That--broadly speaking--means that you have to remove people advocating for any kind of absolutist, authoritarian rules. It's easy to see at a macro level, but it's all fuzzy at a micro level.