Free the Beeminder code!
There are social  and practical  reasons to write free software. For Beeminder, being something primarily used over the internet, the AGPL would probably be appropriate .
Ramana Kumar shared this idea
Admindreeves (Cofounder, Beeminder) commented
Hear hear! I think the biggest thing holding us back is Stripe keys or godknowswhat that's in our git history.