> people writing them felt comfortable enough with their environment team that they could talk freely. There's talking freely and there's writing childish or u

> people writing them felt comfortable enough with their environment team that they could talk freely. There's talking freely and there's writing childish or unprofessional comments in the source code. It doesn't take much to keep code comments clean and you can still vent to your coworkers in other ways. The example comments you wrote all seem ok to me though, except the second one, which just comes across childish or dickish. You can say the same thing and be blunt about it without suggesting someone should be fired for doing what you don't want them to do. But hey, that's just my opinion on the matter.