The self clear button. It saves the time and speakers for warrers and just prevents the eye pollution with lots of people shouting clear me . This button automatically clears you with just a press . The catch is that it can only be used at a certain time limit before sign-up ends.
Doesn't look very disapproving... Anyway the reasoning behind idea is OK but not really necessary, in mY opinion
No support. The support crew would be constantly emailed with people saying they accidentally cleared a lump sum. Did I say no support.