This is a strategy for those who want to stay in the game for most of the time before their bankroll is gone.

I've bet in a similar way and all I managed to do was prolong my "suffering"

You see, most players are looking for quick wins, so they don't mind emptying their bankroll in just 10 minutes, but they need to feel the thrill of increasing their balance fivefold as quickly as possible. For these players, spending half an hour betting low and winning 5% is much more painful than losing everything at once.

Anyway, I'm not saying your strategy is bad or that it doesn't work, I just think it doesn't apply to the profile of many players here.