[mkozlows]

As a team, decide how much you care. Some teams won't care much at all, and will follow a "hey as long as it works" attitude. Other teams will be deeply interested in making their code as good as it could be, and will want comments about doing things more cleanly or elegantly and will view PR review as a chance to learn and improve.

As long as everyone's on the same page, and sharing the same attitude, that drive to improve will come across as a positive thing rather than a jerk move. But if you're the one person with that attitude on a team of good-enoughers, yeah, not so much.