Would it be possible to add a section in the Market sections for USD trades, maybe like sub-sections or something.
Ares USD Trades
Diez USD Trades
etc...Or something to that affect. That way people looking to buy/sell for USD wouldn't have to search thru all the posts where people are buying/selling for igc/items and vice versa. Keep the actual market section for the buying and selling of stuff for igc like moradon is, except for the gay 999,999,999 limit in game.
May also lead to less spam on the market forums since there would be less bumps required on each section. It would just be up to the Market Mods to assure that they stayed sorted out if someone posted in the wrong section. I don't know just a thought, whether it's feasible or not, or if it would be too much hassle to actually add all the sub-sections.