It's probably be a lot of work so not a suggestion, just a thought experiment.
Start with a lump sum like you have, $1000 something. Buy $1000 of Bitcoin and start him on $1000 of cash.
Every time he makes a prediction about Bitcoin, plot the resulting loss (win). On top of that, plot how much money he made from that post.
So if he makes a shit prediction and his Bitcoin 'fund' loses $200 then his running total for Bitcoin is $800. On the other hand, his post made $300 so his 'cash' fund is now $1300. Plot both on the same chart.
Don't know what it'll prove though, nothing you don't already know. Follow his advice and lose money while he profits just from writing it.
It's probably be a lot of work so not a suggestion, just a thought experiment.
Start with a lump sum like you have, $1000 something. Buy $1000 of Bitcoin and start him on $1000 of cash.
Every time he makes a prediction about Bitcoin, plot the resulting loss (win). On top of that, plot how much money he made from that post.
So if he makes a shit prediction and his Bitcoin 'fund' loses $200 then his running total for Bitcoin is $800. On the other hand, his post made $300 so his 'cash' fund is now $1300. Plot both on the same chart.
Don't know what it'll prove though, nothing you don't already know. Follow his advice and lose money while he profits just from writing it.