I think we're all just dogshit but think we're better than the next person, it's like driving. I'm a "comment if there's no way to make it readable" kinda guy, I work with some "comment and don't bother to make it readable because there's comments" people. We all suck. I probably forget to comment on unreadable places sometimes, or overestimate readability he either doesn't update comments so they're out of date or the code is so gibberish that a comment didn't help.

Ideally I guess you comment AND make it readable AND make sure the comments are up to date, but who do you think we are? Superman? And what's the right level of commenting anyway? Probably depends on who is reading them.