A team where I worked looked into that as a hack day project - the idea was that you'd mine coins for charity while using our product. They built it, and was i

A team where I worked looked into that as a hack day project - the idea was that you'd mine coins for charity while using our product. They built it, and was it was feasible, but so underpowered that it wouldn't generate a useful amount of money even across our entire userbase.