Honestly, I find it complicated. Just looking at blockchain activity to decide if someone is addicted to gambling isn’t a solid reference. Anyone can make lots of gambling transactions or play regularly, yet still not consider themselves addicted.
This is truly not possible at all. No one know how much the gambler is rich. Someone like Drake bet huge amount of money because he is very rich. This would be a poor approach against gambling addiction. A gambler should be the one that should go for self-exclusion on a gambling site.