You can't use an eBay account as a collateral, same with future earnings can't be a guarantee that you will pay up. You need to come up with a more valid collateral like alt coins or a forum account.
I should have read the rules more carefully my apologies. Oh an I wasn't counting future earnings as guarentee, it was more of like your BTC loaned to me is only going to be sold and bought back, nothing risky done with it