The next tax return will include a note describing the theft of my handle soy soy@ bitcointalk.org. I suggest the bitcointalk administrators make sure they have the documentation and trail of sales of that name and that of soy39 here.
What does your stolen account have to do with your tax return?
If a person stole 1,000 BTC from a person five years ago, they owe that person 1,000 BTC today, would you agree?
I think the law disagrees, the damage is measured in local currency at the time of the theft. Kinda like how MtGox has to pay back the fiat-amount to it's clients, while the BTC amount they have is worth a lot more by now.
I don't agree with it though, it's like the perfect crime: steal 1000 BTC now, wait until it's worth 10 times more, then pay back $10 million, and keep $90 million for yourself.