If I don't want to do it, say it, eat it or look at it and that will be the truth if I say it. May be polite and keep my mouth shut (which is what usually happens) but I want to have the choice to complain. When someone complains about my complaining and say "Don't complain," then I get the tiniest build-up of frustration. I wouldn't mind so much if it was "It's not too bad," or something along those words, but to whine about whining to stop someone from whining seems like your putting out someone on fire by setting off an explosion beside them as to suck out all the oxygen. Rude.
For me, complaining to someone or just yourself is sometimes necessary you are identifying your problems. Like a pebble in your shoe. Right now it seems that I'm complaining about someone's complaining towards my complaining so I'll get to my point.
I'm finding that pebble to remove from your shoe. I am lining them up to sweep them aside or it's still there, just floating around like dust in my face. Don't get me wrong, I don't complain much. I won't like the taste but I'll eat it, I am tired and work is boring but I'll keep going. The walk is forty minutes through the rain but I'll walk it. Because as soon as I complain and whine about it, I can remember things about why I'm doing it in the first place and the stone is lifted and the complaint is out of the way.
So that's why I complain when I do. Please don't complain about it.