Maybe. I talked to a guy at our local computer shop about it. They had a rig set up to mine cryptocurrency (can't recall which). I asked how much they made, and he stated about $50 on that rig, then I asked how much extra the electrify cost them, he said about $45. I'm not sure if he was joking or serious. But it takes a lot of electricity to mine the stuff. Yeah, this guy may be making $800/month in crypto, but how much is he spending for the power to do so?
Electrify - electricity.
Zero, he got unlimited supercharge with purchase of car.
You and I subsidize his power cost
Most miners are using data centers because they typically get electricity cheaper and they have cooling systems. Most rigs are high end that cost several thousands of dollars.
There’s a guy in Iowa that gets power from a windmill and he built a building to house dozens of computers. There’s money to be made but a huge outlay of capital to purchase the equipment.
That’s the point he gets free supercharging. Charge the car at the free charger, park it in the garage and mine away. Repeat each day or two.