Easily said, there are over 100 coins out there, not sure how we're expected to know when to check for a complete change in a coin rendering all previous coins worthless. Its not practical to check every thread on every coin, constantly.
I'm sure you have not invested in all 100 coins.
This dev gave you a full months notice in regards to the exchange to PoS. If you have invested in a coin and aren't looking to it for over a month you should ask yourself if you should have invested in it in the first place because you don't seem to care about the money/btc you invested.
I'm not trashing on all those who lost coins due to the exchange but remember there is no easy money anno 2014. Make sure you keep your old wallet.dat file and private keys because the overall Ruby community is tight and is preparing something to help those who have lost coins due to the exchange.