Btw IMO since upvotes doesnt happen magical, everyone should be free to upvote what they want. The Author itself has 0 influence over it.
And Upvotes are more a kind of donation, not really a reward that measures any quality.
Downvotes itself are pretty political ( same as upvotes).
Everyone is free to upvote or downvote whatever they want. PoSV is just a guide on how you should vote if you agree with its principles.
There could very well be people that disagree with it and that isn't the point of PoSV.
But the author having 0 influence over it is not true. Author can decline the rewards, or send beneficiary to null or whatever. So they do have influence on what happens to the rewards to some degree.
And I agree on that rewards do not measure quality.