I am in no way opposed to Lemmygrad being blocked, it's not really the kind of content that I want to see.
But, I do understand how one of the main attractions of sh.itjust.works is supposed to be that it just works, regardless of what you may want to post about, and that blocking communities isn't very conductive to that. I think the answer here should be democracy, doing a poll on such things isn't a hard thing to do, I think most of us would have been fine with the block.
I guess I'm just philosophically objected to dictatorship in that way. I completely agree that I don't want random genocide denying loonies filling the comments section, I just don't think it's much effort to ask people. I also imagine a lot of people here are attracted to this instance because it's supposed to be less complicated than other instances where there's a lot of moderation about what can and cannot be seen by users. So when it comes to banning whole communites (which in this case I think is completely justified) there should be caution and discussion.