Uh, so that's why some recently uploaded posts had such abnormally inflated score.
Honestly, I can't see anything good coming out of this. Now score is even less indicative of image's quality and is all about the popularity. And being from popular artist, copyright, or fetish gives them way, way more advantage than before.
Besides making score noticeably less meaningful, there are also two objective flaws in the new system:
1) There is nothing that would stop users from creating multiple sock puppet accounts to upvote posts by favoriting them. This was actually one of the best advantages of the old system - it was largely protected from manipulation and abuse.
2) Old posts are at huge disadvantage when their score is compared to that of the new ones. They were already at a disadvantage before due to the naturally increasing number of people who can affect score, but at least it was somewhat limited. Now the gap seems to be an order of magnitude larger.
As for new supervoters, I can't clearly trace their influence since their votes are not indicated in any way, but the concept itself seems counterproductive.
When supervoters are selected based on similarity of their tastes to a single person, it will only lead to certain posts getting advantage because they fall into that person's areas of interest. And even if the selection process is changed and range of interests diversified, the bias will still be there. I don't see how making some preferences more influential than others is beneficial for the system as a whole or useful for other users who may not share those preferences.
I think that it would be a better idea to move in the opposite direction. Make the score of recently uploaded posts less inflated, not more. One simple way to do it is to revert all recent changes to the system except favorites counting as upvotes, so that single (vote-capable) user couldn't +2 a post right away.
This would help to keep parity with older posts. It would also help to slow down the snowball effect (comparably higher score -> more visibility -> even higher score) since the gap in score between posts would grow slower and various posts would have more time to get noticed.