I have never seen myself or anyone I work with ever call another developers code “garbage”. Asshole behavior is never OK. Doesn’t matter if you’re Linus, Steve Jobs, or the other endless list of bullies who happen to have some talent.
It's better to be polite of course, but I wouldn't call someone an asshole or a bully because they sometimes fail at that.
That's... That's a hard one to even entertain as being correct..