Speaking only for myself, I get disgusted when I see cross posts.
At least you admitted it. Just don't do it again. It is disrespectful to those in each community imho. Post in one location and if nothing comes up, post in another. Don't hit up multiple at the same time. It really isn't cool (and that is putting it nicely by the standards I've been raised in), and in fact is often very disrespectful, as one community is often forgotten about because an answer comes in on the other. The next time we see the poster, it is for another question with no due respect given for the response they received the last time they were here. You seem understanding to the point where you get it, capiche? ;)
Cheers,
Steve