(if not paid their account goes debit)
This can't be.. because then we're at the same place we were.. Me basically insuring your loans.

If the people don't pay back the loans, you are out of luck (Go break their legs!)

The only problem with your 'bad loan insurance idea' is that its ripe for abuse. I'll explain

User #1 makes an account, brand new.. user #2 loans him 10,000 points. He gives the user the points, use spends them and never comes back again.
User #2 files his claim, he gets back SOME points every single time he does it. See what I mean?