Interesting idea,
but I'll share my perspective.
In LTM, I'd say 70% of people are more interested in albums released before the 80s—what we call vinyl records.
Retro Matic, however, is more passionate about collecting music libraries from around the 1990s.
This means that many of the things he shares simply don't interest a lot of people enough for them to bother downloading.
Even if someone has downloaded them, some people might keep the singles they like after listening, deleting the rest of the album entirely.
Of course, it's also possible that some people will keep the entire album—either in cloud storage or on their own computers.
If someone in LTM has stored these files and wants to help you, they'll need to go through a cumbersome upload process—and may even have to upgrade to a membership to increase their storage space.
Assuming all this is done, he still faces one final hurdle:
Retro Matic. Because if someone did this and Retro Matic found out, it would be awkward—it goes against his intentions.
Retro Matic is a genuinely good person. I admire his passion for collecting CDs. We often exchange CD rips, and his research into Music Library is profound. We hold mutual respect for each other.
So at the very least, I wouldn't do that (though I have stored some of his).
Because if I did that, I wouldn't know how to face him.
But if others wish to do so, that is their prerogative. Once they've weighed their options, I imagine they'll take action.
Wishing you success.