excuse me... i know what happend because i was on the irc when it happend, he was removing his pandacoin pool and he deleted the wrong database.., my account got removed on that pool aswell but he told me what to do and my coins were back.
Even if that's true, that's a very good reason to not ever mine there again.
What kind of person drops a database without taking a backup and triple checking it's the right one?!