Could you kindly explain how people holding and using bitcoin are going to be "jailbirds" and "destitute"?
Try reading the OP and the links it contains.
Did you read CoinCube's posts? Did you read the linked thread?
The point is that the law is that stolen property can be clawed back.
A large % of BTC is stolen. You are probably holding some stolen BTC now. The longer that BTC trades, the higher the percentage of theft. Eventually all BTC will have been stolen multiple times. This is
yet another reason that perpetual debasement (which Bitcoin doesn't have) is highly desirable, because virgin mined coins don't have this stigma.
The chain of ownership it is on the public ledger. All theft can later be traced
ex post facto (at any time in the future when the theft is reported and investigated). The Statute of Limitations would probably be at least 5 years.
Ie: rs claims coins were stolen, sells them to persom b would withdraws to btce.com.. mtgox gives person b other coins from their hot wallet because the trade confirmation hasnt completed. The hot wallet coins have no connection to the stolen coins. They now belong to mtgox which claimed bankruptcy.
The Feds recently subpoened Mt.Gox to force them to retain trading records, so the chain of ownership will be known to law enforcement.