Yes, I agree with that. It's part of the process when we are losing. It is normal to feel regret whenever we are on the losing side but do imagine when we are winning. We cannoy take off the smile on our face because mentally we are thinking of how we got the upper hand against the house.
So the wins leads to happiness but transient in nature. We want to relive that happiness and thus we play again and always want to win. There is a lot of dopamine rush involved in this and it leads to the addiction, because we want to relive that moment of happiness again. When we dont get it, we will become sad and feel frustrated why the win is not happening.
I think it is a sign of impending addiction in gambling.
To me, all those who are ranting in the all chat box are just normal reaction of gamblers. It's a way to somehow let their frustrations out and I think its helpful to do so.
That is why TrollBoxes exist in casinos and some exchanges. It is a place to vent out some of the emotions and keep the players in the site and not leave for the day. The more they stay there, the more they will be willing to play again.