Exactly. For example, someone could post a song by Slayer from L.A. and they'd just be whoring for karma. If that happened all the time, you'd get people complaining of repost saturation (and who could blame them?)

But if someone posts San Antonio Slayer, who most people may not know about (despite the identical names, these bands are in fact obviously different), then that's a quality post. They're overshadowed by the fact they never achieved the success their L.A. samenames did, but they're still a gem of a band and I wouldn't complain if they were posted, and I definitely wouldn't mistake them for the similarly named thrash band (but I doubt anybody with common sense would).

And on the occasion they are posted, I'd upvote it, maybe leave a comment, and move on. I wouldn't suggest they be put on the blacklist, or that they can't be posted because the other Slayer IS on the blacklist. But then again, who would do that?