The Pump/Dump thing doesn't work it seems, indeed. You can send far higher amounts, but you need to pay a small transaction fee then. Besides this, the hashrate of the network has been consistently high and people are stacking up large amounts. The diff remains pretty low still.
High hash rate and low difficulty does not add up. Low difficulty means low hashrate. My real concern is the quality of coding in the client, that ADPTC was never going to work and was really poorly done . If you hold a lot of these coins which I guess you do I suggest that you move on to greener pastures of which there are many.
I've been working my butt of making a coin and am trying to leave nothing to chance. It will launch this weekend but I'm not going to give exact times as I do not want attackers waiting at my door. If you want I can PM you and you can come join in and stop worrying about NutCoin. The good news about what I am working on is that it does not use Scrypt or SHA-256. I think we have enough of those coins already