Linus Torvalds again uses abusive wording when he could've made his point just as clearly without it. As the leader of a project he should avoid that - it's massively detrimental that contributors fear being the target of his next rant.
Not commenting on the larger point, just this part:
> when he could've made his point just as clearly without it
An ass would be mean with no reason behind it. Linus always has a reason and often a good one.
Low tolerance for dumb and hacks is actually a good thing.
You will not hear many stories about Jobs and Gates throwing fucks because it was either verbal or protected by contract.