How exactly would they verify it? One can easily be a gamer and a scalper. If by number of games, what’s a hundred games during a steam sale compared to a $2k gpu?
If I’m running a mining operation, I can easily pay people in Asia to play video games on my account for dirt cheap to run up the time.
Account older then x years. Modern games purchased that require the GPU you are going to buy. If steam doesn't detect the GPU in your system it will ban your account etc... It's not foolproof of course but this will stop a large swath of scalpers.
Crypto miners are not the problem, the problem is lack of competition in the GPU industry. If there was 10 companies like Nvidia everybody could get his or her GPU easily and at affordable price.
If I’m running a mining operation, I can easily pay people in Asia to play video games on my account for dirt cheap to run up the time.