Was there a personal benefit for you in making Reddit open source? Or are you really just that generous?
All the value of reddit is in the community. We certainly didn't lose anything by open-sourcing the site (I'm trying to get David to do the same for tumblr) in fact we gained a lot from whitehat devs alerting us to exploits before bad guys did.
That said, the reddit alien is also exceptionally generous. And from the future.