Maybe they are asking to much for that strategy and been greedy to earn more money since they came to the point that they lose their entire bankroll by using that strategy, This statement really proves that we can't trust to much on martingale strategy so best for those people who want to earn is to copy the day trading style and settle with small percent of profits and leave, I think that's the best strategy to continuously gain.
You are right, you should not aspire to make a lot of money easily. Such gamblers only think of earning a living and do not enjoy it. Maybe they think that they will continue to make a profit by using such a strategy. But not really because no strategy will work in the long run. That's what I had in mind then, but because of my experiences, I know how to create my own strategy to avoid constant losses.