Help it grow. Put in a bid / ask, if it's reasonable it will get filled pretty fast - regardless of what the orderbook looks like. I'm quite happy with their service so far and really hope they can grow the business and make it profitable.
Right now, a "reasonable" price according to the main exchanges is around 91-92SGD. Let's see how fast that gets filled.
I already sold all the btc I wanted in order to see whether FYB is a good trading place. It works the other way around from what you say: if they lowered their fees, they would get more volume. The customer, which is the trader, and their competition, which are the other exchanges, drive that relationship, NOT what the exchange thinks it "needs" the fee to be.
Pro traders only exit the exchange in fiat once in a while, but they trade continuously. So, the exit fees are much less important than per-trade fees.