In the GitHub issue posted as another comment it's clear that what has happened is:
reply- 8GB Pi is out of stock / too expensive - due to RAM shortage
- Someone bought a load of non-8GB Pis
- Replaced the RAM with whatever they could get their hands on (cheap enough to be worth the hassle, cheap because no one else wants it even given the ongoing shortage - so probably pretty suspicious / of dubious quality)
- The end user buys it and has no idea it has been modified and the warranty is void
- RPi probably don't want to spend their time supporting it. Probably can't if the memory is a load of crap, even if they wanted to. It gets bricked.
The point here is someone bought something else (a fake pi) than they thought they were getting. Not that someone willingly wanted to go hacking.
It's not Pi's responsibility to police what people do with devices after the devices are sold. If bootleggers are modifying the devices and reselling fraudulent versions, that's between the buyer and the bootlegger and marketplace site where the second transaction happened.
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