He's been beta testing Destiny for 15 years

It means that he starting playing videos games as soon as he emerged from the womb. He opened his eyes to see space invaders dropping down toward him. A controller fell from the sky into his hands and he has been fighting space monsters ever since. He's now 15 years old, with a pale complexion and square eyes. He has no formal education. He is a self taught, but brilliant young man who has known nothing but video games. If [i]that[/i] isn't special, then I don't know what is? ;-) (Disclaimer: this is only a joke)

I was a game tester myself for a year at EA games. Got to work on ME2, Madden 10, and NCAAF 10, among some others. Just giving this as a point of reference. So I am sorta familiar with that side of things. Never heard of people brought in and being paid to test a game once it hit its Beta stage. Typically at that point. Typically betas are open/closed, but to the general public. There are far too many people that will gladly do that stuff for free.