Don't you think it's a bit evil to make a profit out of people's lack of self-motivation? I would prefer to give the money to a good cause...
More on this: http://blog.beeminder.com/perverse
Or just think of it this way: You're paying a fee for Beeminder's service and that fee is waived if you never happen to need Beeminder's kick in the pants.
If you really want a charity option though, some of our competitors offer that: http://blog.beeminder.com/competitors At least one (StickK) offers an anti-charity option, but I really don't think that's a good idea: http://blog.beeminder.com/anticharity
When you're talking about motivation, I feel that getting someone to do something to avoid negative consequences will result in low quality work and a begrudging state of mind.
But here's our response to that: http://blog.beeminder.com/lift