I definitely think there's potential here, but more so for Nostr to be the discovery layer of torrent links.

As someone mentioned above, blossom servers are still exposed. Whether that's through takedown of domain or the server itself.

And if we use Mega Upload as an example, we see the MPAA and RIAA have deep pockets to twist the FBI and other three-letter agencies to their will when it comes to making arrests and shutting down pirated media.

I'm not sure most blossom server hosts would want to have such risk. It'd probably be best left for hidden tor services or spreading torrents as mentioned above.