So if fiat does NOT get converted, and the fiat withdrawal is very limited.. Our fiat is stuck there? I'm guessing people will be reluctant to sell their BTC / similar for fiat if it will be hard getting it off the site.
The value of the fiat will be much lower on btc-e as there is no assurance it will ever get out.
This means you will probably be paying a hefty premium on coins if they allow those to be transferred out.