GPUs stopped being used for crypto because Ethereum switched from PoW to PoS and that decimated the whole gpu mining industry. Ethereum was the only profitable thing to mine, that also had a usecase. The rest of the chains dumped in price and became unprofitable to mine at scale. Not enough market depth to unload the tokens at scale.
> GPUs in AI provide far more value and utility than crypto ever has regardless of how/if it’s mined with them or not.
Two points:
1. GPUs for AI != GPUs for crypto. They are not the same systems. There is a tiny bit of overlap, but most people bought underpowered gpus that were focused on ROI. For example, you didn't need more than 8GB ram. You also didn't need ultrafast networking.
In other words, it has nothing to do with AI.