After running through my 250 moves today my account seems to have gone into the negative. Just thought I'd point it out so it can be examined for potential bugs before the roll over later this evening.
Yeah, I've noticed that a couple of times too. I think it happens if you click too fast before the system realizes you're out of moves. It's very rare so I'm not spending too much energy on it, but I will post here if a definitive solution is found.
Thanks.