I don't know if it's already implemented this way or not, so sorry for being a duplicate if it is.
As far as I see, "Getting involved in product improvement" is mostly done actively by some enthusiasts and I think it would be great to get average/mainstream user involved in improving user experience with help from the OS & within the OS.
I also think that this would improve users' overall experience greatly about the product since average/mainstream user would like to see being taken care of / listened to when they need it.
Discussion thread: http://talk.maemo.org/showthread.php?p=354963
PS: English is not my mother language, so I apologize for any language errors I made here and below.