This is not game theory... this is basic scamming thoery.
IF you are a scammer, what do you want people to do if you are going for the long con?
You tricked them and make them think you are trustworthy and then you go for the big fish.
Was the premined address published and clearly shown that the wallet was cleared? There was a post earlier saying he still has 82k coins that was moved throughout and possibly dumped. If that's the case, then that would be the right thing to do is pay some back to the miners and make some good PR, then BAM! Hooked and sinker.