When it comes right down to it, the Internet + Anonymoty = Loud and obnoxious morons.
Then again there are some people who act like complete idiots when responding to perfectly legitimate hubs, questions or forum posts and those people justify their own actions with a wave of the hand because they are "experienced", or whatever.
Those people have about as much grounding in the real world as the aforementioned morons, so really you just have to pick your poisons and go with it.
I mean, if you're trying to rally haters against a particular group, that's illegal. If your hub is paragraph after paragraph of "Why someone should kill the president" that would also be considered hate and/or illegal.