They allow loli/shota to be posted is the general reason I've seen.

That's a kbin only thing afaik, this thread is for the sh.itjust.works instance.

Basically the opposite side of the political spectrum of lemmygrad

Well if lemmygrad are considered the far left then exploding-heads would be the far right.

Unless we're talking about different wikis it should be here with about 10 sites for japanese porn https://fmhy.pages.dev/nsfwpiracy/#porn-sites