I agree with this entirely, and have griped about it to people (and here) before. But I would never, under any but the most egregious circumstances, complain d

I agree with this entirely, and have griped about it to people (and here) before. But I would never, under any but the most egregious circumstances, complain directly to a colleague who does it or (especially) send them this link. People are different, and most people are different to me. I'm getting paid partly to deal with other people, so that's what I'll (sometimes grudgingly) do. If they're doing this all the time to each-other, my productivity is still going to be relatively high anyway.