they were 'music fans' to some extent, but by the replies you can see they're struggling to grasp just how MUCH music is out there, how for every big-name band now immortalized in the popular canon, there was 9 or maybe even 90 others writing similar songs that were literally exactly as good, and the only difference was mostly dumb luck! they couldn't really 'get' this, and kept insisting "it must be an unreleased Dire Straits song" or whatever