Thanks for the alert. This warning is from March - 5 months ago. And it is still running. I've only known about it some minutes ago. The scam is quite slick, with the "mining window", "users' chat" (`positive feedback'), "why they exist" (noble-sounding, i.e. "to help improve bitcoin")... I believe some people had been conned over the months, sending the `mining fee' to the address.