I'd like to weigh in on this, agreeing with pjeby. I joined beeminder, am enjoying it and expect it to be of great use to me. I don't care even a little where the money goes. The amount is a penalty to me, and I like the way it is automatically set. If the money allows you to focus more on improving beeminder, that's great. If it ends up making you rich, that's just evidence you're providing a valuable service.