[Jensson]

NFT are just like tweets. An NFT of a torrent is the same thing as a tweet linking to a torrent, just that in this case the tweet is stored in a blockchain and people can buy it.

[netflixandkill]

I understand what NFTs are, but torrents are ephemeral and recreatable and frequently replaced even for the same source data, more akin to indices. Proving you had a copy in the past or traded for said proof conveys nothing if no seeders exist anymore, and abandonment rates are huge outside of archival communities.

Other than the mystery and the joke what's the meaning of a NFT for the URL of a deleted tweet?

[Latty]

The same as every NFT: nothing beyond what everyone agrees to, which right now (and likely forever) is nothing.

Well, I suppose separating speculators from their money is another answer.