Whether the whole donation thing is the case with ScT or not, the situation, as described by sez, would be much scarier than the RIAA or MPAA coming after you.
The situation described by sez, not saying its true or untrue, could put anyone having control of the money at extreme risk. "Tunneling" the money through another company, or more precisely, laundering the money is a big criminal offense throughout all of North America, as it's generally associated with organized crime or drug trafficking. Anybody with access to or even knowledge of how the money was laundered could be at risk. Money laundering and its associated offenses carry stiff penalties, including lengthy prison sentences.
If this is what caused the shut down, I wouldn't blame them. Those would be some pretty serious charges. Also, with money laundering, usually comes a whole whack of other charges.
Of course, this would all hinge on whether it was deemed that the money was coming from an "enterprise crime offense", otherwise, I think it's just tax evasion, if the money was unreported. However, with the current anti-piracy climate, I wouldn't put it past authorities to try and deem the operation of ScT an enterprise crime.
This actually raises some interesting legal questions that aren't generally related to piracy in regard to running a tracker that accepts donations.