I have a bunch of unused CPU time on my virtualization cluster. I wonder how the power delta for full-utilization would work with the pay...

And, depending on where you live, most probably at a loss. Here in Spain electricity is so expensive that this is probably a very bad idea.

So teenage gamers who live with their parents and don't pay for power.

Or people using company workstations to siphon dollars out of electric bills. This is why bitcoin mining quickly became uneconomical unless you can get energy free or on the super cheap.

Yup. It looks like that. You pay electricity bill for them and they get the coins.

Our current Beta Users earning $10+ per week reported not noticing any changes in their power bills. We advise everyone running the SuchFlex Desktop App to keep an eye on their electricity costs and to communicate any significant spikes.

wow, your beta users have invented GPUs that don't use electricity ;)