I like it. Look at the screenshot below or visit http://forum.kde.org/viewforum.php?f=83.
Wait. No such thing in Windows. No desktop environment concept there. But in Linux, we know KDE as first desktop environment. It is cool until now. And it has a forum for brainstorming. KDE users in whole world can submit ideas there. Wow. Ubuntu has same forum but that forum globally for Ubuntu as OS, not desktop environment. But KDE has. Cool. I visited it since a week ago and very interested.
My comment: This idea for letting users submit idea is great. Forum concept is good for users dislike mailing list.