I think everyone but the nazis, agrees that blocking the nazis is a good thing.
I haven't really seen anyone advocating for not blocking the nazis, but maybe that's because both of the severs I'm on, one of which is roundly derided as unsafe somehow, effectively block the shit out of nazis.
It's kind of the rest of it, the part that isn't nazis, that doesn't feel all that productive. But I'm past worrying about if it's "dangerous." I would advise not playing. This is all a lotta bad noise.