mining hardware doing AI training - is the output actually useful

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there's this network that launched recently routing crypto mining hardware toward AI training workloads. miners seem happy with the economics but that's not what i care about my question: is the AI output actually useful? running hardware is easy, producing valuable compute is hard. saw they had some audit confirming high throughput but throughput alone doesn't tell you about quality nobody independent has verified the training output yet afaik. that's the gap that matters. has anyone here lo...