Not everyone wants to pay $2-$5 for a social media account.
Fee to enter, to participate = scam, pyramide, Ponzi...
I have no idea who came to this fantastic idea to sell the accounts, but it's marketing disaster
If you make the accounts free - great!
I agree that accounts should be free. Unfortunately that is not our decision. And as long as accounts are not free and only large stake holders can claim accounts I think that this service makes it easier for users with only a few SP to invite their friends.