I don't like you. You make money by stealing value, not creating any.
He's just arbitraging. If "the system" leaves gaps across which you can trade for a 300% profit, then people will inevitably trade across those gaps and take the profit. Those people aren't bad people for doing that.
If there's something to hate here, it's the system. The domain market is a very peculiar market. ICANN is a very odd organisation.