^Ashley's rapid response; my tl;dr version:
I've noticed a few times people have posted really good 'my list of suggestions' threads in places like the 'general' or 'how do I' board, but have been lost in the traffic. It's a shame because there are some really good ideas in them. There's a few little things I'd like to recommend too.
It would also be useful for finding items that Ashley has already added to his TODO list. I made a post last night asking about a certain feature only to find out later the suggestion had already been made. Having a 'Added TODO' sub-forum similar to the bugs 'closed' sub-forum might cut down on the amount of messages Ashley has to respond to.
To go one step further, moving threads to one of three sub-forums might be handy - One for 'Will add', one for 'considering' and 'Cannot/Will not add'. It would be very easy for forum users to find and link back to those threads when new people arrive on the forums. I feel like it would organize the community a bit more.
Has a suggestion forum been suggested before? Also, that word is slowly losing all meaning...
All of the "suggestion" requests are just as easy to find in the forum search as they would be if there were a new area to put them. It would be unlikely that you would have found that your suggestion had previously been made any more easily with the resources you request than with the resources you currently have.
Likewise, good "suggestion threads" receive a lot of attention. And if the thread does manage to get sent off page with no responses, there are plenty of thread users who check the "unanswered" threads to ensure everything has received adequate attention. In the rare occasion that a thread goes by without receiving its due, it appears to be completely acceptable to bump it once. I have seen threads have great success after being bumped. And don't think that Ashley and Tom aren't present here, they very likely see everything and take note of interesting ideas and suggestions.
It's not that I think your idea isn't a good one, it's more that I think it would just add additional work for Ashley and Tom, as opposed to simplifying anything, as you feel it may. Of course, I could be mistaken. However, given the general nature of the "general" forum, it is expected that a wide variety of subjects would be covered here. The forum tends to be quite active, but doesn't often move at a rate that sends things out of mind and sight prior to getting attention. And of course, as noted, the almighty single bump is the backup to that.
So yeah, I suppose ultimately I would be surprised if something like this were to occur. I think the general forum is adequate for this type of feedback. And of course the chat is always there, which has helped me a number of times, as well.
No idea what you mean by "that word" slowly losing all meaning.