rakes are the amount of money that the admin in the server gets. /house is to get admin. the max rake is 100,000TC. if theres about 500,000TC on one side, and 500,000TC on the other side, the rake is going to be about 50k, if i'm not a dumb fuck. basically, if theres a high bet, and on the other side not that high, you want the side that's not that high to win.
i'm sorry if this was hard to understand, it's really hard for me to explain.