How can Bitcoin ever become a successful global currency when a single entity is in possession of 5-10% of what will ever be in circulation?! If he decides to sell at any point, huge inflation is guaranteed.
I know it's likely that he'll never sell the coins for the sake of anonymity and personal safety, or for the sake of the system. Possible he has even destroyed the private keys. But it doesn't seem certain enough that we can make that assumption.

I'm a little surprised that this hasn't been more widely discussed - so am I missing something?