I try to be as 'polite' I can.
Currently if you dont know the games code and connectivity issues are total trash. Client has constant crashes that happen at least for me if I try to play something like four to six hour straight several times, usually ONLY during multiplayer games. Its not me, its just the poor code. Take my word on that one...
Another thing is as the client/connectivity issues as they are, you cant really impliment that kind of crap when client kills you now and then and your supposed to be penalized from it? Get a grip.
As for genuinely quitting, well I see the boths sides of it. The game as a platform dosnt really support turning tables on lategame and so forth. Its too linear and... boring to allow tactical attempts to really take control of game thats been kinda screwed in the beginning. You dont get any abilities/chances to really turn tables much if enemys champions have gained letsay four levels on your side and your pushed and dont have competitive gold setups which you dont... as enemy gained so much from killing you.
As the game it is, its completely unpleasant if your playing companions quit that I understand. I dont say the quitting is an answer for it, but unless the game mechanics are really sophisticated and complicated enough to offer some chances for underdogs on a ongoing match there is absolutely no sense for them to stick in and just get farmed. You dont get favour for sticking in there, you dont anything. All you do is offer enemy more bonuses... so enlighten me if there is some positive sides to actually try to prolong a fight when you kinda cross the point of no return.
I dont think personally thats the case in earlygame, but when enemy champions start to be overall four, five level beyond you there is no point in a game. Some games ive been in enemy dosnt even try to win, it just farms losing side whom cant do anything with much lower level champions and practically no goldincome.
If you ask from me, any gold from killing champions should be removed and experience. It just screws up the balance and after things tilt too far the match becomes pointless, another side has gained so much advantage the otherside cannot recuperate/comeback.