From that same site, it sounds like that they are actually prosecuting people who leak to the public and are caught, not just canceling their account. This might account for the "quiet" nature of beta even though it's rumored that up to 2000 people are in beta.
From the way he talks about beta tester picking, it does sound like you have to be a troll to get acess. (aka nutcuppping like an SB advocate
)