300 people online and 300 different concepts of what proper game play is. Actually even more than that since the same guy can pick, gang and ho and then go on a rant as soon as it happens to them. Plenty of players have more than one set of acceptable game play rules. One applies to them, and one applies to the other guy.
It would be a better game if everyone showed some common courtesy and respect, but disrespectful behavior and being impolite is part of the game and it comes from the most experienced and skilled just as much as it does from the noobs and squeekers. For some, the trash talking and getting under someones skin seems to be one of the biggest attractions of the game.
The MA is set up terribly to promote 1v1 or "fair" fights. No excuse for ignoring a fellow players request to stay out, but when 1/3 or more of the guys are approaching it as a WWII game where everyone is a General and the object is killing red guys and taking land with little regard for being fair or honorable towards the enemy, 1/3 are trying to get a high score, and 1/3 are flying to find a good 1v1 fight, its obvious that 300 guys flying around pairing off in 150 1v1 ACM battles isn't going to ever happen. You have 1 player who absolutely feels the right thing to do is let this con equalize E and then battle it to the death while the guy flying next to him believes the absolute right thing to do is keep the advantage, get the red guys with whatever tactic works. They both know they are right and they both have plenty of like-minded fellow players supporting their approach. Not to mention that most players are some mixture of both.
The game is what it is. If it was only played by guys who live for the honorable 1v1, it wouldn't generate much revenue. I would love to see less of the schoolyard ego stuff and more polite interaction, but its a video game played by folks that aren't face to face with each other so poor sportmanship and the stuff that goes with anonimity are just part of it.