Why would anyone mine for someone and take the headaches of maintaining it, providing internet connection to it, dealing with the heat and noise and electricity costs to earn less?
Why would anyone mine for someone and take the headaches of maintaining it, providing internet connection to it, dealing with the heat and noise and electricity costs to earn less?
Because he gets paid upfront. I.e. they can buy a mining rig with the money you pay them for a one-year contract. That lets him get into mining business with practically zero investment. He just has to uphold that contract for one year and then he owns the mining rig.
Why wouldn't he let you buy him a mining rig? All he has to do is to run it for you for one year.