I prefer to add comments which contain some rational, like "Changing this causes race condition headaches in the frobulater." Or "Ugly... but it handles the edg

I prefer to add comments which contain some rational, like "Changing this causes race condition headaches in the frobulater." Or "Ugly... but it handles the edge case of XYZ in the foobar config" If I don't then the comments either have the effect of a) scaring future me, or b) getting ignored because I think that I can do better now.