I think wbn made good points about why this isn't practical, but on the idea of running this distributed platform on behalf of a centralised system: I'm happy to run folding at home as the results of the distributed computation is used for university research. I'd be less happy to run payment processes for a gigantic, massively profitable, private company like Visa. If Visa want people to do work for them they can pay for it.
voxpoplar wrote
I think wbn made good points about why this isn't practical, but on the idea of running this distributed platform on behalf of a centralised system: I'm happy to run folding at home as the results of the distributed computation is used for university research. I'd be less happy to run payment processes for a gigantic, massively profitable, private company like Visa. If Visa want people to do work for them they can pay for it.