Hello, we do not require any personal information and you can signup with just a username and password.  You do not even need an email, however we highly suggest including an email in the event of a forgotten or lost password, if there is no email then we cannot reset an account because we have no idea who it belongs too. 

There is no rake in the tournaments, there is only the tournament fee and you can see from these tournaments that the fee is very low compared to the GTD prize pool.  For example the 150 BTC ($100,000) tourney has a buyin of 0.313 btc + 0.023 btc ($200+15). 

Almost all withdrawals are also paid out instantly in btc or ltc at the player's request.