Stupid Questions

And another one on IRC. There's the saying that there's no such thing as a stupid question. That's wrong.
My list of stupid questions, ordered by stupidity:
-May I ask a question? (You just did...)
-Somebody used XYZ? (Of course, if somebody created XYZ, then obviously somebody used XYZ...)
-Anybody around who could help me with XYZ? (Ask and you shall see...)

The cross-poster scourge

I quite frequently use IRC. Often because I enjoy helping people or solve small problems. IRC has some scourges, one of them are cross-posters. You might say: but there's no harm in cross posting? That poor guy just tries to increase his chances for a reply.
I beg to differ. Cross-posting at the same time in different channels is disrespecting the other users. It's devaluing the time they spend trying to help.
Why?
Because you try to think of a solution for that poor guys problem just to either get the answer "Ah, sorry, I already got a solution elsewhere" or no answer at all. Because all too often, after getting an answer, that "poor" fellow doesn't care to look what's going on in IRC anymore. A simple message that they've gotten a solution would help soothing the problem. But in my experience almost nobody bothers to do that.
My solution to the problem? I've got none. But since I'm not inclined to help somebody with no respect for my time, I simply don't help if I see somebody asking the same question in multiple channels at the same time.

Small sidenote: I have no issues with people asking in one place, waiting for a reply, getting none and then moving on.