But I wonder if it will help with finding which version of a work to listen to. A given symphony or piano prelude might have 100 or more recordings. If you go to classical music forum postings, you can usually find a thread asking "what's your favorite performance of..." and quickly find that there are 1 or 2 or 3 versions widely considered the best.
I really want a crowdsourced version of this -- both the most-listened and highest-rated recordings of a given work by a given composer. Because it's a lot of research to do otherwise.
And some people might think it can't matter that much, how different could they really be? But it's astonishing. The same work in the hands of one conductor+orchestra plods along dead and disjointed and you never want to hear it again, while another one soars full of life, the work makes sense and it becomes your favorite.