What do we mean by the term "gambling experts"?
Professionals is what he meant.
Now I’d like to ask you.. as a gambler, would you already be happy earning just 10% profit from your total bankroll?
Why not?
I don't treat gambling as my main source and not a professional. But like having a $1k bankroll per month and earning $100 extra which is the 10% of it, will be fine.
I can pay some bills with that and treat myself to eat outside. Not that bad and this is better to do things than to think of how I'll recover 10% of my losses, right?