I mentioned it before, but maybe it's time to go ahead and create an "In the Works" or "On the Table" or blah blah blah sticky post for this board and the mod board. Also, a "Known Issues" sticky post for the bug boards. It might help cut back on the, I'm working on it, or I'd like to do it, or I already know about it, or I like the idea, but it's not possible at this time type answers.
Of course, you can't have everything there, and it won't stop everyone, but it might help some.