You copy pasted the intro lel you could either quote it or give your own inputs about the article.
The very first line of the article relates gambling as an "ancient activity of entertainment".That describes it all,people do it for ROI's and what not.Its like the primary source of income for a lot of bitcoiners.The article doesn't explain anything new but the same old stuff what we all know.
Hey here's what most valuable suggestion they have chosen to enlighten people.
Develop your own gambling strategy: You will need to develop your own gambling style. You should try to make it completely different from all other players and always know when to stop.
What is the point of this article again if I'm reading it to come up with a strategy myself ?