That would be interesting to note, wouldn't it?  

Obviously, Vitalik was aware of what was happening long before any of us were aware: http://pastebin.com/aMKwQcHR

Did he sell his DAO at the then-market value?  

If you sold yours in the panic when it was down 45%, did you exit the contract?  Does that count as your "payback"?

Will you simply get back exactly what you paid in BTC, whatever that was?  Sounds like a NIGHTMARE to administer.