It appears to be a bot on Cryptsy that automatically places smallish orders on both the sell and buy sides.  If you put up a big buy or sell wall, it will almost always put up an order 1sat in front of it.  If you sell or buy into its orders, it moves the orders on the opposite market side closer.

Looks like we lost our 3500 buy order.  My orders all got eaten too.

If we don't establish a solid price base as a group soon, this coin is going to lose most of its hashrate.

At 3000sat, that's a pretty small market cap.  There must be enough people that believe in the potential of nscrypt and specifically EXEcoin that we can stabilize the market value.  If sellers (miners and holders) see a large enough buy wall, they are much more likely place higher sell orders instead of selling into the buy orders.