..why? Because it's the gaming world equivalent of a tabloid paper. Except it's not entertaining. It's more like a nasty flu of some sort. It's on everyone's lips, so to speak. And the more loud you are, the more annoying it is.
Also - COD and Halo kids with mouth-diarrhoea managed to get Killzone 2 and MAG "balanced" and "fixed" until no one plays the game. When either game was brilliant before the patching. Halo and COD people also scream (not speak, scream) things about common sense rules for lag. It's like this: if they can't join a game and play instantly on their 10% wifi-connection, that's linked to the adsl-modem connected to the socket via unisolated wire led through 100 meters of rainy trailerpark - then they call support and threaten with suing the developer, and making a stink about it in the papers.
That everyone else in the game will see a warping lagger, and that the settings that allow 10% wifi connections in a trailer-park will actively enable cheaters - that's not their problem. Because playing with package loss and warping characters is just "part of the game".
These people won't shut up. They convince publishers to ruin games, and they ensure that console-gaming continues to be niche - as well as generally known for being an unpleasant, second grade experience reserved for people who are not smart enough to work a PC.
I've no idea why this continues, because I continually chance meeting people who buy the cheapest broadband package, just put the wire in the wall, and think "bits" refer to the plastic socket on the network cable - and still do not think either:
1. playing with lag is fun.
or
2. have package loss and more than a second ping across the globe.
So I guess that's why I hate Call of Duty. It's not the game - it's the people who play it.

eh, eh? (..**** is the sarcastic smileys..)