Are you saying that private keys are purposely hidden somewhere in the data, and them you paid for them knowing that you might not be able to find them or that they might not exist at all?
That makes little sense to me.
...sure and I would agree with you now, however, back in 2010 I was trading stocks, bitcoin was little more than an idealistic story. I spoke with a guy in the UK who sounded extremely knowledgeable, a cryptographer, a Bitcoin Miner, the right person!. He said he was a software developer who mined coins and was creating a new bitcoin exchange business. I asked if he could sell me some bitcoin to introduce me to the technology and processes, he gave me a url and I followed his instructions. At the end of it I had data. one of which said DO_NOT_DELETE_72aXXXX a 32 bit hex key another an image of a playing card which I think was the image to remember from the game.
I was busy and forgot about it all for a year, came back to it in 2011 with more time and a greater understanding of privkeys but couldn't derive my privkey or a wallet from these files.
NO BIG DEAL IN 2010-11. But 2021 and it is many 1000's of btc, so sense would dictate to look at it again .
I had a bad first experience as did many.. I paid money and took a risk, everyone holding bitcoin takes the same journey! keys or not, sense or not its now a fun challenge to solve .
I need cryptographers not agony aunts!