What about you? Do you also often treat others when you get good money from gambling? Or you also think that there are better ways to spend the money you got from gambling?
Well, no. I make regular donations, with amounts that I can afford, and sporadic donations as well, but they don't come from gambling directly. Everything I earn I add to the total income and with my budget I plan at the beginning of the month the expenses, including the regular donation and a part of free spending that can be for extra donation, leisure or whatever, but it is not predetermined.
Inviting friends because you have won in the casino I think it is a symptom of little statistical and financial knowledge.