Exactly. My 30 year old receiver would like a word.
There will be failures but not at the level of fear mongering in this thread.
I would also NEVER pick a PM863/SM863 over a S3700\S3710... you do you, but no thanks.
The real issue and risk is buying drives used for CHIA that may have 90% health but HAD been running HOT because they didn't run them properly.
Can I point out that they're rated for only 6000 hours (250 days) at 105 C, or would you also consider that "fear mongering"? To be clear, I'm not saying these drives should be expected to fail after 250 days (they came with a 5 year warranty, after all); I'm just pointing out that they're rated for a reason, and if they fail they're within very close proximity to both NAND flash and other important componentry.
Also, can I point out that I said "10 years (especially if they were in a hot environment) is quite a long time"? Seems like we're in agreement on that one, in that high temperatures are bad and you don't know the provenance of a random eBay drive.
I linked to two official docs: the specs from Intel (which have a specific means of tracking PLP health), and the datasheet from the cap manufacturer.
I also recommended the S3710 over the S3700 ("at least go for the S3710") myself. The PM863/SM863 use tantalum caps for their PLP, which are less susceptible to problems over time. They're also commonly rated for higher maximum temperatures (e.g. 125 C), but I can't find a datasheet for the specific ones used in the PM/SM863 lines. I would also note that I have a 1.92TB SM863a myself with ~184TB of host writes which is still showing 99% health in CDI and "0%" for the "Percentage Used Endurance Indicator" SMART attribute, so they're also quite hardy drives.
I also said that generally I don't think these are a good deal, even if you put aside concerns over PLP/caps. You're paying about as much for a ~10 year old SATA SSD as for a brand new 1TB NVMe with a 3/5 year warranty. Again, however, I do recognise there are some use cases where people need a SATA drive, so I'm not saying they're of no value; just that I wouldn't recommend them unless you have no other options (and even in that case, get the S3710 or something newer).