You're probably not alone in this opinion, but I think there's a specific reason why it's used (and widely used): the anonymity and speed it allows when sharing content. Obviously, this comes at a cost, and that's the very limited time (or download volume). However, as long as you see the user who shared the file active or commenting on current threads, nothing prevents you from politely asking them to share a new link to Go File with the material you want.
As always, be polite and grateful; many cards aren't easy or cheap.
Now, if the author of these links has basically left the forum and you're looking for that content, you could post the request in the appropriate thread.
Sooner or later someone will respond, so be patient, comrade.
Good day.