There's probably still plenty of demand for that. At least someone in the executive team was floating around the idea of buying up some Nvidia cards to run AI models for the entire company somewhere locally. I don't think they'd be opposed to buying up data centre GPUs without fans if they suddenly flooded onto the market, even if that meant getting a rack chassis and a bunch of noisy server fans.

I've also seen someone sell their old fanless Nvidia cards on the local marketplace. There are definitely consumers running these things in their basements.