If you want to vote your sp it is yours to do so, but when you sell/rent your sp so that content not found appealing by the larger audience can get more attention, that isnt the same thing, is it?
All those people paying to play are disadvantaging everybody else, and you are facilitating that.
Just as curie upvoting 'gems' did nothing to keep the price from tanking, neither will this pay to play scheme do anything except enrich the already wealthy at the expense of the regular users that post for rewards rather than buy them.
If you want this place to appeal to the larger world, it has to be attractive to folks that want more than the next quick buck from the platform, while making raping the reward pool less profitable.
As it stands you advantage the shit posters over those that put out 'good' content but are not well known/liked.
I guess if you prefer to take what you can, while you can, then you are doing a great job.
Just good crapitalism, eh?