It's happening everywhere I think, just more apparent in some genres. Yesterday, in DnB, the scores on the top 50 were from 4.49 to like 4.5... and today, they're all down to like 4.7s and I'm seeing a lot of the older stuff with lower scores back on the list. And I don't think it's only happening to "famous" artists, I think it's everybody. I'm not "famous" at all, but my scores have been dropping slowly lately too. And recently, when I submit songs, they're either instantly bombed or they come down within like 10 minutes. For example, 2 recent songs I submitted. One of em was doing good, it had a 4.76 or something after like 14 votes, then I check back later in like 5 minutes and it has 15 votes and a 4.1. I was like, "damnit, man." Then another song I submitted, I fived it myself to see what would happen, so after my five it had a score of 5.00 and one vote, then like 5 minutes later it has a 2-point-something and like 7 votes! WTF? It's not even a bad song, in my opinion. Not my best, but certainly not worthy of a 2, I don't think.
So, yeah, I agree with you, it could be a script, OR, on the unlikely side, it's a huge (and i mean HUGE) legion of zero bombers downvoting everything. Seriously, what fun does one get out of that? I guess they're just those idiots who love to feed off other people's anger. They love pissing people off.
So, as a way of stopping it, we COULD tell admins, but we'd need good, solid proof, and we'd need to know who's doing it, and other stuff we don't know. BUT, as I said before, these people just like to see us get pissed. So if we stop making threads like this and pretend we don't care, maybe they'll stop because they'll see it means nothing to us.
Just my input.