No the problem is that he makes accusations that are not backed up by any data and this is contrary to the guidelines.

I consider myself more of a leftist than your typical hn user and when I have been abnormally downvoted I never felt it was because of my opinion but rather because I was too hot headed or too ignorant about what I was talking about.

So I am very concerned by those claims but without any data about presumed tolerance to bigotry stuff, they are of no value too anyone. Anybody could feel sore and angry about how some social online gathering is not as X as he wish he was. Heck, that's my life on Reddit. Gimme data, gimme sources, I'll vote you up.