By the way how are you going to accept payment ? Will you using forum escrow? If yes then you should add it on OP. So your customers will know it.
About choice of tokens there will be 3 members that will review every project to pick best project, we know that adding shitcoin would destroy the reputation of our exchange (The exchange is quite new).
About payment, users will be able to deposit their "fees" on imba-exchange.co account directly. So no one, me or any one else we will receive any token or coin. We can use escrow too, but the customer need to create his own account anyway to deposit, this will be difficult with an escrow, but I repeat that there is no problem to use it!