You guys even have super transparency, and iirc mention you provide it because commitment contracts would incentive you to encourage failure, and that's not what you want at all.
Compare that against e.g. Trello, which is good looking and usable, but it's kanban without queue limiting. That defeats the whole point! (I explain this in more detail here: https://gen517.com/queue-limiting-the-whole-point-of-kanban/ )
The difference between trello and beeminder (to me, at least) is that the beeminder people think about how to provide anti-akratic tools a lot, and embed their thoughts and discoveries into their product. The Trello people basically provide nice CSS for a tool so flexible it has nothing to say at all. If I want digital paper, sure, Trello is nice. If I want _actual help with something_? I'd prefer software developed by people trying to help me.