What is the one behaviour you noticed in a gambler and you dislike it? You don't need to have a reason for disliking it but you just do.
As for me I dislike when gamblers complain of their losses, meanwhile you hear them complain when they are getting winnings.
What about you, what do you dislike ?
Gamblers behaviors are subjective and relative to individuals, the way Gambler X will react to winning and lost is going to be different from the way gambler Y will behave because it's inherent of our anxiety. There are people that don't even show anything at all, when they win something big, they will remain silent and when they win something nice for the day, they also remain quiet, that's how they react in every game they play and it's natural to be like that.
A gambler can win a game with big amount that is worth life changing opportunity but will celebrate it with friends, they will not loud it or make it public, what they do is withdraw their money and continue gambling over again. However, any time you they lose a stake or lose in a game, that moment, they become disappointed but will move on the next one.
Another scenario, a gambler may win a good amount of money, they will blow it up that instant without any plan of the next thing, but once they lose a game, thats when you see the blaming the platform or the game been flawed and if it's a player fault, they blame the player for not helping them accomplish their expectations, very ironical that in winning times, they don't exhibit this behaviors.