There's a whole wasteland of people mining to keep coins alive. But not very many people. If ten people are running one graphics card each, out of nostalgia or

There's a whole wasteland of people mining to keep coins alive. But not very many people. If ten people are running one graphics card each, out of nostalgia or just in case it catches a rocket to the moon, this is no environmental catastrophe, any more than a personal Minecraft server is.