he realized that your immense lack of skill would bring him down competitively so he left your team and joined an actual successful team.
Apology accepted. Please continue to play the way you do. I enjoy not having to heal my Gunner when we scrim. It gives me more time to drink a beer and relax.
serious answer: because you guys play like you are in a pub match. because you have a support on your tank and not on your gunner, your gunner gets destroyed, as do you because you dont use anything other than deathblossom. when you are dead, our gunner can eat your support alive without a second thought. since your gunner is busy dying all the time, our tank is unopposed and can maul your assassin. that leaves you with an assault and sniper. our gunner has no problem killing your assault as well. while our gunner devastates 4/6 of your team, our assault can attack your sniper without a care in the world. now that your team is entirely contained, that leaves us with an assassin who has free reign of the bot lanes, and a sniper just for the hell of it. you make stupid decisions, you have a poor skill level in the classes you main, and you throw fits on the forums which makes it so that the only people you can recruit to your team are players that do ok in pubs and dont know you.
I've never even played against/with this guy and I play all the time. Probably time differences or something.
to back up how much your team sucks: sigmar subbed in for your team. you guys had THE BEST SNIPER IN THE GAME and he pulled a 0-2! YES, SERIOUSLY! no kills, died twice. one assist. your team is that bad. maybe if you had some sort of decent social standing better players would be willing to play with you, but you dont so they arent.
Is rundozer Fearless Feedle? Also, real answer to OP: Snarf tore him a new one on the Uber forums and now he doesn't want to show his face anymore. No, seriously.