They don't really make many waves and when they do it tends to be either minor or very divisive stuff. Also ironically many of us got worked up about L4D2 and the media was right, it was great value and we were worried about nothing.
Personally I still think that, as good as L4D2 ended up being, it was still a bit of a slap in the face to L4D owners. It was a great value if you didn't buy the first - less so if you bought L4D at full price. I bought L4D2 at the "approved expansion pack price" of 20 bucks.
“The greatness of a nation and its moral progress can be judged by the way its animals are treated.” - Mahatma Gandhi