People don't seem to understand that a lot of negative behavior exists in a context, and if you remove the context, the negative behavior can largely disappear. It doesn't necessarily just go elsewhere.
This gets to a Harvard study I now can't find that suggested that anonymity online is a red herring. Anonymous and whatever the opposite is (named? nonymous?) people are equally likely to follow community norms -- anonymous people are actually slightly more likely to. The problem is not the anonymity, the problem is the community norms, which in the banned subs were horrible.
