So basically Facebook got the same benefit as if they had acquired the company(the talent) for less money and the investors got screwed.
There's probably a lot more to this story than we know--there's no need to jump to conclusions.
The founders have themselves said that they have little traction, and 3rd party payment services will not add much value.
> domain name
Doesn't matter, when brand name isn't useful
> Existing code base
Its takes significantly less time to build it the next time.
> Registered users
Facebook has 250 million users! <1% cant matter anyway.
Investors own the company, not the employees--even if they are founders.