TRADES: I'm happy to consider trade inquiries by PM prior to actually proposing a trade. Quite busy at the office so I may not be able to reply quickly and occasionally may not be able to reply at all. Nothing personal!
I consider trades for games I want, which are generally Wishlist 1 items, or possibly Wishlist 2. I definitely prefer to trade one of my games for another, single game of about the same value/desirability as mine. This can be estimated by the price of current copies in the BGG Marketplace and/or historical sales. I also look for the games to be of about the same rarity.
I very rarely am able to accept offers when the games proposed are of significantly different value, or are many games-for-my-one type offers.