[Kush]

As to your concern, it sucks having your stuff stolen, and if it's just some nameless spammer then your best bet to have an affect is to email them, their host, and their sponsor.

Although personally I don't think neither they nor their host will really give a shit, and sponsors of course never want to shut anybody's account down unless what they are doing is blatantly illegal, or costing them money.

All I can say is good luck :/