I really wondered about that part too. It didn't make sense, as even scammers would normally wait until the MP pump, then vanish.

But the timing goes well with DCM. Two devs received 22btc, so they may have figured they'd call it a day and pack it in then. There were also several mini-pumps occurring with XBC previously, when XBC moved into the top 10 list for voting. So there was plenty of time for the devs to unload their coins at a much higher price than it is now. It's not necessarily an optimal way to go about it, but I'm sure they made their money.

Now if they wait a few days, and then make a miraculous return, while scooping up dirt cheap coins, they probably could profit a bit more even. I don't think that will happen, but if I put my evil thinking cap on, that would be one way to go.