i think the exchange section needs sub genres. we need a section specifically for people who want to "sell", people looking for a specific frame they want to "buy", and people looking to "trade". when i go to the exchange area, i'm just interested in seeing what people have for sale. i'm not looking to trade or sell anything of my own. its hard to find the threads that are just for sale, without having to look through all of them. most of them are "want to trade", or "want to buy". a section for each would greatly simplify things. also, deleting threads after the glasses have been sold would help clean things up too.