But the thing is there are gamblers that can't stop playing even if they have won a lot already and think they can make more out of their winnings but end up losing in the end.
You are assuming that they are losing to prove that they lose.Just because they are wagering does not mean that they are going to lose. Just because they are greedy and continue to bet does not mean that they will lose. And if you are considering only one player, then the variance is high and you will deviate from the mean of 0.
Basically, your argument boils down to this: human emotions cause greed, which means a higher wagered amount, resulting in the loss of money.
This may be true with games that have house edge, but it's not true in the case of zero-edge games. And not only that, but you are also assuming that the casino has enough bankroll to cover that of the player.
From my cursory reading of your conversations, I would agree with actmyname. The fact is that indeed there are those that will get greedy but probably there would equally be those that win and takes home the money thus resulting to probably an equal gain and losses for the casino. Mathematically speaking, this is indeed a 0 end game since we are rolling an infinite number of games and this means that the closer we reach infinity the more likely the results will be 0 in this case. Hence, indeed a casino with 0% house edge is just wasting their time and server hosting.
It's possible to obtain the hosting fees through donations from happy customers
Probably by displaying a messege asking for a donation to people that won significant amounts of money and placed a withdrawal.
What is the point of running a site and depends on donations to maintain a site? I don't know how many winners are ready to donate their money.
I don't think any normal business person does this mistake without keeping an option to bring some profits for them for the time and risk they take to run the site.
I don't think a gambling site can just run on donations. As a gambler, I would have in the back of my head " I won this money fair and square without the casino even giving anything back to me when or if I lose on my bets. So why should I donate?" Since the casino doesn't really care about the gambler if they lose, so why would the gamblers care if the casino closes down? The gambler will only care about his deposit and the winnings, he could care less about the casino.