Unless you have a damn good reason, don’t write comments.
And if you see a comment, you should probably delete it.
I didn’t come up with this—it’s the policy in the office, as well as
various tech shops all over the planet. I thought I’d start with a fun
one though. Half the people that read that will think I’m an idiot. The
other half will shrug and say, “We taught you this, boy.” (The latter
don’t need to keep reading.)