If you bought or are mining ETC then get out before the 27th July as the DAO attacker takes possession of 3.6m ETC which, let's face it, he will dump immediately to cash out any ill gotten gains he can from Ethereum Classic - the only chain that supports the attacker.
Remember ETC is undeveloped, unsupported, open to double spend and replay attack vectors, in addition to the DAO attackers dump. The price and hash rate has collapsed making it even more insecure. Do not risk your money.
I would say it is their own mistake since the devs should have made the code more safe. When it is dumped very hard, more people will buy in cheap and hope for a rise. It is an unpredictable situation, who knows what is going to happen, it is the same as gambling.