I think these forums need an "official" suggestions thread, where people can check which suggestions have been already made, and even the publisher&developer opinion about them (Undecided, Planned, Dismissed...).
That would have many benefits, like:
- People will know which suggestions have been made and promote new ideas. Duplicate posts could be reduced (not 100%, but at some level it will)
- We'll be able to see the reaction of the publisher/developers about what the community proposes. This will have a big impact on the users' feelings... being heard must come from the official forums (if not, there's no difference between using them or any other forum available).