You fit all those qualifications.

1) Bitter vets - you can find a lot of these guys in the old clans from MAG and generally, are the best players, if not for skill, for SP. They've given up trying to fix this game and are slowly migrating towards other games.
2) Fanboys - not necesarrily good or bad, but probably the only people that will be here in six months. They do not make this game better, but they are necessary to its survival. These guys still have hope.
3) lost n00bs - possibly the most important group to appeal to, as without them, this game will never grow, and they won't have any fun if groups 1 and 2 take the time to help them out instead of stomp them all the time. But honestly, there isn't anything else to do. It's like this for most vets: play a couple PC battles, pub stomp, forums, turn off Dust.

troll away!

troll away!

what do you call a MAG vet that haven't left yet and still like the game like me?

There is at least one missing option... 4) people who see the flaws, aren't a noob, and yet aren't bitter.

I know it's hard to imagine but they do exist.