He wasn't involved in that project for years, and still was considered its moral guardian -- cf. the tweets about the EULA. Open-sourcing would most likely have

He wasn't involved in that project for years, and still was considered its moral guardian -- cf. the tweets about the EULA. Open-sourcing would most likely have not changed that. If you though copyright was complicated, try copyleft… I am not arguing one realm is superior to another; just that handling their interactions is something Notch has expressly said he didn't want to deal with. Selling is simple.