Without anyone knowing your name or address?
1. Prepare VPN/Proxy/Tor or anything that can secure your connection
2. Register and use fake identity for verification.
3. Sell your bitcoin.
4. Withdraw your fiat money to hacked bank account or bank account with fake identity.
says the idiot who has no idea what he is talking about
and assumes things would go smoothly doing this
like exchanges have not already got policies in place for such abuse