Wow! If this site has been up for a month or longer I wonder how much they could have stolen. It's ironic too, because I just wrote recently about using a paper wallet generator, and yes the only safe way to do this is by downloading the source and using the generator offline. It's a shame for those that may have lost coins, and as the price of Bitcoin continues to increase I'm afraid we'll continue to see an increase in hacks and scams meant to steal Bitcoins.

Thanks for sharing this information as soon as it became available @kingscrown!