I think it's still only amateurs or the exchange trading against itself at FYB-sg. That's why the price is staying so much higher during this last downturn. It would be about 5$ lower right now if there were professional traders, but they won't go there because FYB chages 3 times more than the BTC-e for example.
They say it's to cover development costs, but their trading interface is one of the lamest and most primitive I've seen.
The reason FYB is not growing is because they charge too much.