He makes no bones about it. Git got its name because Linus thinks of himself as a git.

He's totally a jackass and it's completely unnecessary. Being the father of Linux doesn't merit you being king of jerk land.

Linus rubs people the wrong way all the time. It's just the way he is wired. He enjoys arguments and hyperbole. Once you understand that, you can choose to accept that and interact with him without undue suffering, or not.