I honestly disagree with this since you can just disable keysends bellow a certain amount, basically setting the rate on what people pay to advertise to you. Choose to go to the ads doesn't work hence add blockers exist and companies are now actively building against them. V4v advertising is alot more beneficial than a brand scrubbing your data to serve you ads. I'll take getting paid to see any kind of ad vs what is currently just Facebook ads owning the whole market.