Forum spammers
Is it really necessary to go into every post and give some kind of meaningless feedback? "this has been suggested" well congratulations for pointing that out. Maybe it's a good suggestion that needs to be suggested again. Maybe it's an issue that should get more attention. If you haven't noticed the forums aren't flooding with posts. If they posted it in a topic from 5 monthes ago you'd be commenting on how they revived an old post.
The search function also isn't nearly as productive as it should be.
Just my 2 cents