I don't agree with banning someone just because of their clan affiliation. Even if it is a clan like Qi or Nigerian Cunts/whatever, I would only permaban someone if they have repeatedly done something wrong on my server, or are individually known problem users
If they're in Qi, and want to stay in the group, but aren't persistent problem users, then I think banning them for no reason other than the fact that they're in Qi is wrong. They could have easily not done anything wrong, and they're being discriminated against because certain members of the clan are bad apples. I won't say Qi is a good clan, though, because it seems to have a lot of bad apples.
But regardless of that, SQUAR3D admitted to spamming the Qi forum with research which was uncalled for, and should be punished
That's just my 2 cents though