Hopefully he doesn't get banned.
Not a chance. Policy here is not to ban scammers, to let them full latitude to pay back, which I agree with.
Paying back 70% looks like a very innovative way to scam here, but we need this to be done before going further.
Most scammers over the years will either pay back some amount, or claim that they are going to until everyone forgets. Usually it's just a matter of waiting a month or so before some even bigger scam or other catastrophe eclipses it. So, nothing very 'innovative' here.