Oh yeah, and we have some very old thoughts on Pact (originally GymPact) and the idea of the winners paying the losers here: https://blog.beeminder.com/gympact/
Tons of room for competitors doing commitment devices and other motivation hacking. I chuckled/winced at "Beeminder but for less highly technical people" -- we'll get there! :)
And here are our thoughts on charities: http://blog.beeminder.com/anticharity
Oh yeah, and we have some very old thoughts on Pact (originally GymPact) and the idea of the winners paying the losers here: https://blog.beeminder.com/gympact/
Tons of room for competitors doing commitment devices and other motivation hacking. I chuckled/winced at "Beeminder but for less highly technical people" -- we'll get there! :)