You don’t need to explain yourself. Many sensible people would have sold it for that much profit. I know I would.I'm only addressing comments from users placed in a similar situation due to market circumstances. I think you can read any of my posts and know I'm not rubbing anyone's face in it. It would have been easier to not explain and remain silent. If you think someone is a villain for selling a gpu they own, you’re probably too invested in this... but yes I have no wish to drag it on I've offered my advice to Dave.
On the other hand I would never pay £2k extra.
Instead of blaming the seller, why not blame the people that pay these silly prices?
This does not make you untrustworthy or a bad person in any way.