For example, Curtis Yarvin seems to believe black people have lower IQs than white people - that is plainly racist and completely unsubstantiated by any evidence. IMO, when a person approaches that level of insanity in their extremist beliefs, I don't care what they have to say about or contribute to Scala - I don't want them giving talks. I do not want to be a part of a community that gives racists a platform - regardless of whether the platform breeds any political discourse. It sends the wrong message.