I must say this kind of action speaks to the low emphasis on long-term credibility that this exchange has and a low concern for customers if they are willing to expose them to such volatility purely to fleece them for transaction fees. I think some minimum level of responsible gate-keeping should be practiced by service providers of all kinds to prevent the whole crypto-coin environment from being tarnished by unstable and possibly fraudulent activity, unfortunately none do, the attitude is completely mercenary and "get rich" even amongst entities that should have long-term perspectives, the whole culture is rotten to the core.
Looking at this forum FC is very popular lately. They did the right thing adding it. If it tanks, they can remove it.