Like Linus an Linux, dislike abuse
Linus is a good guy. He should consider leading here by
1) Apologizing regardless of the level of perceived abuse (even if there was none in reality);
2) State that professional abuse is never to be tolerated and that all communication must be polite and respectful.
People can agree to disagree and leave it at that.
People have a tendency to be disrespectful on the internet and it detracts from the problem at hand.