I don't see the relationship between this and Giant Bomb, unless Giant Bomb is secretly harboring assholes in a basement somewhere making threatening tweets.
The assholes should be ignored. No one goes away if you give them the attention they want, it's exactly what articles like this do. You can say things like, "if we don't cover it the problem will never go away because no one will talk about it", but assholes on the Internet aren't going to listen to reason. People who threaten people like this will never say, "you're right guys, I am a jerk and was totally wrong!" It just doesn't happen.