At the risk of annoying you, i think these things are actually best suited to be coded as a modification Ahmed. Its not a very hard thing to do and i don't know how many people actually need this support in the core.
What could be thought of is something like this as say a forum sidebar widget.
I like this idea, there are enough times where we want to query the users from a particular site/forum with a notice, but we'd have to redirect them to the thread. And the others don't see the result in the notice. Having a global poll system (not tied to a thread, but a notice) would be quite nice.