People have been selling weird stuff for years. There are services that let you "name a star" with a fancy but meaningless certificate.

Even with fine art, there many paintings that have value because of historical and absurd cultural reasons that border on being a scam.

People have always tried to sell stuff, and there always ~~fools~~ people that will buy them. The rules get crazier when it involves things at that exist at extreme ends. Like that app that was 10k that just had a spinning diamond to prove you had money to waste. Twitter is a big service, dorsey is a relatively famous name, idk, weird stuff happens.