The individual registered MiningUnited with domainsbyproxy.com, which is private to the public but not to DomainsByProxy. There are so many digital trails left by this fool, you could easily track him/her down if it's worth your time. I lost a little under 4 BTC (1.5 of which was returned through MU) and completely invested knowing I was gambling that BTC; it was my best option at mining free BTC and I took the risk... and lost. I filed through ic3.gov and have done my own research to track the individual. If the FBI were to actually get on this case, which could happen if enough people file at ic3.gov, they could catch them in a day of work, easily.
Completely agree! I'm also of the belief that someone will track him/her or them down. So whether they were playing SatoshiDice50% to help refund users, get rid of the evidence, or to line more of their pockets, at this point it really doesn't matter. I'm a firm believer in KARMA!