@cjd guesses:
1. You aren't 1000% antisemitic and a total White supremacist 1000% of the time. It spooks fringey folks when you live outside of their worldview, and I say this as a thoroughly antisemitic proWhite poster. You're too positive, intelligent, and capable of a human being for me to just dismiss outright. I have to take your ideas seriously against my own beliefs to maintain my personal integrity and my own belief that I am somewhat of a smartypants.
2. They're retarded faggots