Don't talk b*ll*cks. If someone has taken the time and trouble to seek out undiscovered and unknown records they are quite rightly IMO entitled to a bit of exclusivity from such records. It can often be a lengthy and expensive process finding new records, records that benefit the scene to try and halt the steady decline in the scene and stop it becoming stale so the DJ should at least get some benefit from them. A record covered up, especially when a good record stimulates the scene and collectors. The mystique surrounding it gets people talking, gets collectors searching for more, gets the dance floor moving and progresses theis scene of ours.
As for the poor artist, you do talk some crap at times, if the DJ or collector hadn't gone to the trouble to find the record it would probably be never heard. The real artist will come out eventually when it's uncovered or someone finds another copy or two (if). I'm all for the artist getting due recoognition but I doubt very much the artist 't gave two hoots about dancers far away in the UK when he took his money for doing the recording in the first place. One record covered up for a while will do no harm at all, maybe even the opposite.
Cover ups always have been and probably always will be part of this scene.