The exclusivity of the domain name is a public good. The right to use the domain name is a private, transferable good. Were the auction site operated by Romani

The exclusivity of the domain name is a public good. The right to use the domain name is a private, transferable good. Were the auction site operated by Romania, the value of courses.ro would be determined by auction, paid by a willing buyer, and received by the Romanian polity. Instead, the Romanian polity receives 300EUR as an entrance fee to a race-track where luck is significant in determining the winner. There is nothing in the linked article suggesting that the number of entrants is limited.