Checked all ring games in lobby and noticed rake cap is the same for every stake.
I think rake cap is too high: half BTC max rake is discouraging expecially for high stakes players.
It is discouraging for everyone as the rake is, de facto, uncapped.
No wonder you can't find that information on their website, which in itself is already quite shady.
What kind of business do not advertise their fees publicly but force people to already be a customer [you apparently need an account to open a table and check the rake] to be privy to this information ?