Edit: after reading the contributors doc, it seems that feature requests are discussions which should help. Unreproducible bugs, too; although I would wager that a lot of users believe they can reproduce bugs but in fact can't consistently, or believe their feature request is a bug.
It seems this approach is better but still requires someone to sort through the discussions before they're moved to the cleaner issues pile.
One big pile with filters, or a chaotic pile and a clean pile. That seems to be the end result of this, unless I'm missing something.