It escalates the problem. Hatred leads to more hatred.
Violence leads to more violence.
The first thing is Internet safety and awareness. Much like any public library or bookstore, the Internet has a vast amount of information and knowledge waiting to be explored. And like the library, some of that information can be used for destructive means. Don't put yourself in a situation where you no longer have control or can not simply exit. Never agree to meet face to face with someone you've met online.