Value for the user: no ads and the site gets supported for "free" (the user is very unlikely to care about or even be aware of the electric use and device wear)

Value for the user: no ads and the site gets supported for "free" (the user is very unlikely to care about or even be aware of the electric use and device wear) Value for the webmaster: the value of the mined coins, obviously. Is there a certain definition of value you're using that these don't fall under? Why should all people in the world participate in the distributed process of counting out the correct amount of cash in person to each other? Why doesn't every company just invest directly in finance instead of doing what they do? I don't really have an answer to that, but if user-end mining generated more revenue than ads then website hosts would just switch over to it. Imagining a future where people make content in order to be miners, or indirectly they make content to make money, seems fine, I already support some creators on patreon. I think the power/cpu requirements for lower end devices could be worked out in time.