Right, the GPU dump on crypto crash is one side of the bad scenarios for Nvidia (the other side being extremely high crypto demand which drives gamers to consoles and they loose a large chunk of their GPU gaming business).

But Nvidia does not control whether crypto crashes or booms. They have to have a strategy keep their base (GPU gaming/Datacenter) market intact in either of these scenarios. I don't think having their own coin is a viable strategy for these scenarios, it will just drag them deeper into the crypto world.

I am here also interested in these FPGAs mostly as a hobby. And I suppose many others are in same way. Whether large farms adopt them, will probably happen only when these FPGA's are proven. So nothing much may change in next 3-6 months.