I think responsible risk is the same as only using money that we can afford to lose.
If we can only afford to lose $200 a month then only use that, there is still a risk of losing it all but if that happens it will not affect anything, because that is the amount we can afford to lose.
But it could also be for other gamblers responsible risk is how to use the money to gamble, meaning with a small capital then will play casino games with low volatility, or when betting on sports betting set a small betting percentage to suit the budget.
I agree with this because after all, when talking about risk, it does not mean that we should take refuge behind the word risk to be more than what we can bear because after all in this context we must be able to take responsibility for ourselves and the limits of risk that we must have from the start so that in the end regardless of the results (losing or winning) in the gambling that we do it does not make us burdened and feel lost with regret because we know that it is our standard capacity to lose it.
We know that there are risks to be paid but that doesn't mean we can do anything in gambling just because it depends on the word risk because sometimes the limits we have set can be forgotten just because we consider everything a risk.