Yes, that's a very reasonable position to take, and I'm leaning the same way. I see the issue as being very similar to the question of whether or not a society should condone killing people: It makes perfect sense to have a general rule that says you can't, but sometimes you have no choice. Pacifism is not the solution here.

The karma system does not solve this problem because a small number of people can have a disproportionate impact simply by voting more. And of course, extremists care more and so are more likely to vote. My post above is now at -3: Is this because the community disapproves? Or is it because 3 bio realists felt threatened by the notion that we should ban literal nazis because it might extend to them as well? I am not at all convinced it's the former.