Sometimes I wish he would have just stuck with Minecraft as the only developer and stayed away from the spotlight. Plenty of very popular game creators have done so (Icefrog, Toady One).
I really enjoyed the times back when Minecraft was just getting popular and you could tell Notch was adding features that he genuinely enjoyed (Redstone update, for instance). Then he started up a giant company and started assuming responsibility for things like server admins charging money, when he should have sat back and let people do what they want.