But as I have said before, nobody who owns real Bitcoin Wallet.dat files or something similar (.json for early Ethereum legacy wallets, early Dogecoin Wallet.dat files from Dogehouse etc.) or at least believes that these files are real will trade them for possible fake wallet files or sell them for a buck. It would be highly stupid to give these files away, even for 10 or 50k. I am just writing this to logical inform you, nothing more
Yes, I also think that nobody who owns a wallet file with several million USD in it would share it or if they would then not before they have been sitting on it for several years and many of the wallets here have been tried to be hacked for over 5 years. But I wonder if it wouldn't be possible to overwrite the part in the wallet with a new password?