It's really cool to get compensation for work on your own project. And $700/week is a lot in the country I'm living in, it's enough for hiring 2-4 good software

It's really cool to get compensation for work on your own project. And $700/week is a lot in the country I'm living in, it's enough for hiring 2-4 good software developers (I know a few groups of people who do work for YC companies). But I would feel very uncomfortable knowing that the person who pays me doesn't get something valuable back and doesn't really need what I'm working on (but rather "provides more value to the universe"). That is probably just me, though.