This is the world we live in
Not every startup is based on vaporware. A few, like Github, combine a good idea with better execution and wind up delivering something of actual value to consumers. So now Github is a unicorn, and its time for the smart money that invested in it to cash out. That's the world we live in folks. But let's keep things in perspective. First, as others here have pointed out, there's an Internet full of alternatives if the worst happens. It may be inconvenient to move to another service, but by its very nature, git was made for that. Besides, given that almost half the people in the US don't have the wherewithal to manage a $1,000 emergency, I'm wondering if it's worth getting worked up over.