Well, when I posted a new thread wanting feedback for suggestions, I didn't get a single reply.
If you want to make this sort of a system, the idea to order them isn't bad, put them in different subforums, with a new thread for discussion of new stuff and a main list of everything in that theme.
Then a link to all accepted or not denied suggestions in a collection thread and you could strike them of as you read them and maybe post a finla note in the thread if necessary.
The main problem with the current suggestion thread is it is lengthy, it would already ease the situation if long suggestions would be made in another thread, and a link be posted with a few lines run down on the general idea.
That way, people could discuss the suggestion outside the main suggestions thread, which will stay uncluttered.
Also, it might help to compile a quick list now and then with everything that has been suggested recently in a line each, stroked out if denied.