Digital collectible bragging rights. And the hope that you can sell it onto someone else who wants to brag even more than you.
There are legit uses of course, but it's mostly just a mass hysteria digital art speculation fest right now.
Thanks, that makes a lot of sense (in this day and age, unfortunately).
It reminds me of the Guinness book of world records, where at one end of the spectrum, you had purely real genuine world achievements, such as who can run a mile in the quickest time, fastest wheeled vehicle top speed, fastest computer (supercomputer) in the world, and so on.
But, they allowed (partly silly) entries, whereby a normal, non-world record type of person would do something silly (examples are made up by me, i.e. not true), like buy 5,199 tins of peas, and say that is the world record number of cans of peas to be kept in a normal room in a house. Yes, at some level it is a world record, but it is being silly really, as there are almost an unlimited number of such things e.g. 5,199 9.573K 1 watt resistors, in a single box. Etc.
These NFTs, should be tied in to the actual owners of the thing (i.e. a youtube channel, trademarks, copyrights etc), not some random unconnected (possible scammer), who just happens to create the NFT.