I would also avoid using one of the unlicensed exchanges to cash back into USD because of their non-compliance with various laws and regulations.
Can you name such exchanges?
Are there ANY exchanges that are licensed or is there any known legal way to convert btc to usd? A miner can't even sell btc to his best friend for "cash" can he?
I would think you'd have no problems selling things like amazon gift cards or home depot gift cards but cash in the mail seems sketchy, right? and wires?