1. You are just as out for yourself as they are. If you were truly altruistic, you wouldn't spend time playing video games, you'd spend time helping people who are less fortunate than you are. Also supported by the fact that you are demanding people spend additional time with you despite the fact that they are not interested in spending that time.
I...yeah...uh...I'll be on the first plane to Africa....
Listen, when you start a multiplayer game with *other people* you are commiting enough time to finish the game with *other people*. Hey, what are all those asterisks for? Oh, right, emphasizing the *other people*
If you quit in a 1v1 game the other person immediately gets a win. That's great! You didn't want to waste any more time so you didn't. Good for you.
If you quit in a 4v4 game you just ruined the game for at least 3 other people, especially if the game was not truly lost. You may have even ruined the game for all 7 other people because the winning people wanted to actually earn their win instead of one person rolling over and dooming the rest.
2. If you play the game, you are a part of the community. In fact you contribute to the community simply by providing yourself as an additional player. The quality of a habitual ragequitter's contribution to the community may be low, but it is still higher than the quality of contribution from someone who simply does not play the game.
And a drug dealer on the corner is part of the community too, while the quality of his contribution to the community may be low, it is still higher than someone who doesn't even live there.
Coincidentally you'd find most people don't want the drug dealer in their community. TOO BAD. He has a RIGHT to be there, eh? Leavers are the drug dealers of Demigod.
3. Even by your standards of the community, your proposed response to ragequitters is wasting potential members of the community. Again, not everyone shares your moralized view of the subject but people will generally adapt to the conventions of a community because getting along with others is in their own interest. If you can convince people not to ragequit with a polite argument or request, then your actions have helped the community gain a member(under your definition of community, not mine); if you ban them, you have instead deprived the community of someone who could potentially contribute because you decided you'd rather be petty and vengeful(suits your name actually). Diplomacy first, guns later. This is not even addressing the reality that banlists are always abused to satisfy personal vendettas.
You are assuming that leavers can be turned from the dark side. In my experience this is a complete pipe dream. In my many many years of Dota play I amassed innumerable names on my banlist. Whenever someone would come into the game who was on it I would post the ban (it contained the date of the ban as well). Anyone who acknowledged that it occured and/or apologized for their leaving in the previous instance I would grant a second chance, and if they did not leave that game I would remove them from the list. Needless to say, this almost never happened. Usually people would deny it or immediately start swearing at me. That's when I'd kick.
These people are not potential valued members of the community because you shouldn't need to "teach" them that what they are doing is wrong - it is common sense. People without that common sense I don't want anything to do with.
The response is dead simple but it doesn't relate to my primary argument(which I've noticed you are now ignoring). If you really want to see how it's wrong though, I'm happy to oblige. If you're a baseball player in that scenario, it's your job to play the game. You have a contract to play and you are getting paid for it. Demigod, even competitive demigod is recreational. If you think hitting a ready button is comparable to an employment contract, then your analogy may work for you, but it won't work for many others.
Fine, 3 on 3 pickup basketball. Other team goes up 15-5, one of your teammates just walks off the court without a word and never returns. His right. Don't get mad at him. Perfectly normal. Valued member of the 3 on 3 basketball community.
Nonsense. Don't convolute the issue ("they have a contract!"). It's jackassery in real life and online and no one should tolerate it.