What exactly is this 'dust spam' that this 0.01BTC transaction fee "solving"?
Someone with only one Bitcoin could send 100,000,000 transactions, which might overload the network. This isn't a good solution, though -- the vulnerability will still exist when the limit is lowered because someone will certainly be saving a bunch of Bitcoins.
Someone with one Bitcoin can already send 100,000,000 transactions, by repeatedly sending the coin to themselves. How is it any different if the value of the transaction is 1 or 0.00000001 ?