It's just not for you to judge. Those with sophisticated models usually have a lot more capital to manage. Also, it's not a zero sum game because alignment with the underlying's price drives it. Long term share holders are the foundation that makes it not be zero sum. As a retail account grows, its approach too can become slightly sophisticated over time.

It's not a good idea for punters to go to the casino and bet it all on black. Some percentage of the population is always going to be degenerate gamblers. We can try to reduce the harm a bit but ultimately this is just a reality we need to accept.