I know for Spymac but I don’t like their statements especially this:
“We pay out daily and monthly jackpots to the uploaders who contribute the most unique and interesting videos, pictures and audio. Not everyone who uploads get money — only those who upload unique, quality and attention-grabbing content share in the jackpots, which means higher payouts for everyone.!”
I think everyone deserves to be paid. But of course, it depends on statistic that how many vievings, watchings, listenings their content have.
This is just my subjective point of view to revenue sharing, not general.