So you're asking github employees to violate their NDA?
Don't act shocked.
Also, gritty insider information is never the same as the official word.
Are you also shocked that you can stand in the middle of the highway and get hit by a car and die? You can do it if someone asks you but you’re not forced to.
See: https://news.ycombinator.com/item?id=49353915
Disclaimer: not a lawyer