I (don't) like how some people say "If your code needs comments, your code is probably ugly and should be rewritten".
Well, asshats. You have never considered complex calculations/functions or "temporary" workarounds, right?
Sometimes, you have to do it in a not-very-readable way for efficiency. There is no way around that in that case, and comments that either explain the code below or provide alternative, slower code that's commented really help others understand your code.
If I ever work with you and you don't bother commenting your code at all (or rather use slow code because more efficient code doesn't appeal to your "muh code dun need comments" approach), I will hate you.