in reality, no, they don't know who I am. Back when LocalBitcoins.com facilitated face to face trades for cash around the world, you just had to have a high rating from previous transactions. Now... how safe do you feel showing up to meet an anonymous guy in a bar with thousands of dollars in Benjamins? That's the downside of being anonymous. /edit: The downside of operating completely outside the system.

/edit 2: I should also clarify that I never cashed out my casino's BTC in this manner. That obviously wouldn't make sense because anything that touched a casino wallet would be traceable to that nexus. I only used it to bring extra spending cash and rent money to countries where it was hard or expensive to transfer USD through banks.