I think either players would need to upload their own recs, or someone would need to contact players to collect recs from them. There isn't a profile from which you can grab rec files like there is on Voobly. Streamers have even been having trouble finding games to spectate while they are being played.
It would be nice if recs (ranked) were auto uploaded into a database, and searchable, downloadable, playable within the game interface . No more of this having to use external programs (web browser, file manager) to get recs.