Did that person hypnotically buy the strategy for $3700? It's like he's convinced that there's a trading strategy that's 1000% accurate... even though we know there's no such thing.

But maybe that person is greedy for buying a trading strategy that doesn't make sense, maybe he thinks he will get a big profit because it's an expensive strategy...even though the reality is losing.

And right like you said, the most important thing in trading is risk management, if you can't manage this then trading is like gambling because it's too blind.
Because I myself have seen a friend who lost a lot of money in futures trading tens of thousands of dollars because he did not do risk management.