That's a different problem. Retiring a number only affects the subset of all people who actually care about the Yankees numbering system, but only has to be don

That's a different problem. Retiring a number only affects the subset of all people who actually care about the Yankees numbering system, but only has to be done once with no further upkeep. The decision to lock down a domain name in perpetuity potentially affects everyone on the internet and more to the point, negatively affects the people responsible for maintaining the DNS servers and the content servers, etc.