Re: How it made money is therefore a mystery...
Let's say $100,000 per contractor for argument's sake / 52 weeks * 1,000 contractors @ 5% interest / 52 weeks. So I make it that holding everyone's money for a week in a better than market average account would get them less than $2,000. Given a realistic business account interest rate.... more like $200.
So I doubt they're going to retire off the profits any time soon.