Yes, unfortunately some retailers are actually miners as well.
This mining craze is a disaster. Instead of trying to minimise our power consumption as much as possible because of the severe threat of the global warming, we instead add very severe load of total power consumption of a medium-sized country to the power grid.
By medium size country you mean extremely small country called Ireland with 4.7 million people or 0.06% of the world population?

And that's before you check the sites that make that claim and work out the figures are also inflated by a factor of 3-6 times.

