The instance seems to be mostly right wing trolls. I know defederating is unpopular but I don't think much is to be lost in this case and it can save the mods some headaches.
Edit: the response on exploding-heads.com to my reporting of transphobia. Courtesy of the "second in command"
That is the only post with those people on it. You specifically found where other's are trolling exploding-heads and then trying to get exploding-heads defederated. You are being manipulated.
Nice