At 6.5GH with an expected 25MH from 1 RX570 that would mean one person runs 260(!) of those cards, or pays someone else to let them run this amount of GPUs.
With a max of 7 cards per rig that's around 2000€ for each setup, needing 1200W each. So that is more than 37 complete rigs for a total of ~75000€ using more than 44.5kW/h of electricity.
All from one user?This can't be real, can it? Please enlighten me, someone! (Just curious... )