Rich from gambling can be only gambling site owners. They can be really rich - a lot of Bitcoins.
You might be right. But OP asking us, by playing gambling, not providing the service of gambling house. If the gambling house owners also a gambler, then he might be a richest person in my guessing.
the simple answer is that i am not rich from gambling.
I think we cannot see here posting that they are rich in gambling, maybe if the question would goes like poor in gambling, many people will share because most likely gamblers have that kind of experience. Hopefully, those newbie gamblers will learn from the mistakes on the others and should evaluate their selves before focusing gambling.
Maybe I think is very able to earn much money with gambling because I am sure the results of a very large gambling. but greed and wanted to try it again last defeat was the impact of gambling. The results obtained from gambling is only obtained once and it was not good. So for the rich with gambling can occur but are less effective.