> Also, ask yourself why someone would offer a platform to build profitable strategies instead of simply trading themselves based on their competitive advantage. The answer almost always is: Because they failed to trade profitably and pivoted to selling their (unprofitable) infra.

This is correct. It's so obvious but most people simply don't see it for what it is.

The interesting thing about these platforms is that they can actually record what OTHER people are doing, see what the successful people do, and possibly just copy them.