Frequently they don't. And many post on multiple forums for the same problem at the same time. In fact, it's usually a copy and paste on all. This is a gross inconsideration as far as I'm concerned, but that person thinks his/her problem is the worse and demands immediate attention.

They don't stop to think that this can cause multiple volunteers to be working on the same problem at the same time for the same person.

Polite? No- more like self-centered.

But there are those who make it all worthwhile> they finish with us, say thank you and move on.