> Edit: Also, when I nitpick your code for one reason or another (which generally only happens when I am enforcing a company style guide), I will often say "Nit:" and then use the sixth style. If you are new to the team, I will quote the guide to you. Most people don't feel so bad about the nitpicks when you admit that you are nitpicking, and that it is for a reason.

This. We do it on our team as well. Especially when it is smaller things like spelling, indentation, etc, I might have quite a few nits in one PR, so it makes it a little bit easier on the receiving end when you see a dozen comments but they're all marked as nit.