I am really glad someone brought this up. It will really make guys here to read T&C before signing up for services.
I saw the wierdest when I was checking T&C of Powerbet (scam site) and saw this Section D (Accounts) : Point #15
Inactive accounts means players' accounts which have not recorded any log in and/or log out for a period exceeding 12 consecutive months. PowerBet reserves the right to charge an inactive account fee for 0.01 BTC per month. The administrative charge will be imposed on the betting account of the player.
The first fee for inactive accounts will be deducted following 12 months of inactivity. All consecutive fees for inactive accounts will be deducted on a monthly basis until the betting account balance reaches zero.