Unfortunatly, you aren't. Immature people use it as an insult. It's funny, actually. They use it to either say that you are worse than them, regardless of whether you do better than them or not. Xbox live is full of immature people..
On topic: I think this article is sloppy. So, I'm disregarding it.
Only play L4D on xbox live and most people there aren't so bad. (communication-wise)
Although, two of them kept killing each other and whined like little babies.
And then they both followed me to three other games...