didnt i hear that people opening and closing games too quickly are now getting a 15 minute ban?...or is that in a future patch?
It wasn't a ban, it was just a time frame where you couldn't make or join games, and that was removed because it was bugged and happened too often. They said you shouldn't ever be prevented if you are a player, even in farming conditions.
This is pretty inefficient. Really inefficient, actually. Farming the 3 crypts in the cemetary is better - and you get 5-6 elite kills out of it. And up to 3 goblins. Up to 4 if you clear the weeping hollow too. Then it's up to 10 elite groups. Or 12 and 5 goblins if you get the den of the undying or whatever.
If you do the jar of souls or that other event with 5 NV stacks, you almost always get 2 yellows, too.