To be honest with with I don't know because I'm not an online psycho :)
Im a psycho on or off line
Biggest reason ? They can hide behind the screen and talk big and act worse. Some get drunk or whatever and spew hate and some just try to intimidate others with their big talk. After all these years, I've learned to just ignore those kinds of people because some are psychos ! It's just that they can hide behind a screen and no one can really see how pathetic they really are.
Probably because the people you find online are just a sampling of what you find in real life ... It's just they're more in your face. It's a part of life that we all have to learn to deal with. You can't control them .. Only how you allow them to affect you. Many of them act like "pscyhos" just to get attention ... If you don't give it them .. They often just move on.