Actually, from Nvidia's point of view, there may be a point. If a graphics card has been worn out / degraded a lot, they could check the counters for the crypto tracking chip to see if there has been hundreds / thousands of hours of GPU mining done on the graphics card. If so, this would void the warranty, if sent back to Nvidia or Graphics card manufacturers.
There's other reasons too (mostly to do with the affect it has had on the graphics card market / getting cards into the hands of retailers across the world etc).
And what about video encoding, or any other cuda workload, they could just as easily say that any non-gaming workload is "business" use and therefore warranty void. This would have a huge impact on anyone who uses their GPU for any number of hobby or learning functions.
What about a pro or avid gamer who plays many hours per day fully overclocked?
As many people have pointed out, gaming uses much more power at higher temps than mining, so why not void warranty on people who game more than your set limit too.
How about instead of wasting money tracking their users like some draconian peeping tom, they actually design GPU's that can run their advertised software for the length of the warranty period.
But, oh, yeah, they do, as evidenced by my 8 cards that are 5 years in, 2 years out of warranty, still mining away quite happily having not failed at all.
I suspect the lifespan on LHR card versions will on average, be longer than unrestricted cards and I think this may have been a factor in Nvidia's decision to act against GPU crypto mining.
And then you throw nuggets of unfounded rubbish like this is in and say the onus is not on you to provide any evidence to back it up because "it's nothing to do with you"? Well you started the thread and throwing around baseless claims, so yes the onus is very much on you to provide actual evidence of mining card failure rates, when any miner can tell you they've had no card failures in multiple years of mining.
I mean, the people who actually make the vram rate it for use at up to 110C for a warranty period of 3-4 years, but apparently it degrades at 60-70C in a couple of months? Pull the other one, it's got bells on.