Formerly chapo.chat and r/chapotraphouse, they are a tankie instance that frequently brigades threads that mention them, and engage in harassment campaign against anyone who disagrees with them. They also frequently praise and defend Russia and China, two genocidal dictatorships in which one is engaging in an illegal war against ukraine and china has rampant human rights abuses. Since there are good faith users on that instance, they are more of a hesitation than a censure.
I will say, looking at the other posts, we do seem to be the only community engaging at all with the assessments. I guess associating with pedophiles doesn't bother lemm.ee enough for them to dispute the charge.
I find it interesting that casually associating with pedophiles earns less opprobium than being a tankie in this system of evaluation.