It's not mentioned in the article, but CNN has a dog in this fight with their iReport service. They receive and post a lot of user-generated content nowadays.
This is true to some extent or another for almost all of the major news sites. Even if they just have comments, they're aren't offering them out of the goodness of their hearts, it's because it's a cheap way to boost impressions, sometimes dramatically. (At least, this is why they existed when I worked for one of them.)
That probably explains it. I was wondering why all of the sudden a mainstream media company would start talking about it, as it's generally in all the MSM's benefit to let SOPA pass and kill all their Internet competitors, and even use it as a tool for political censorship under the disguise of "copyright infringement".
They are also a big company that donates to the government so I doubt they're expecting serious ramifications from this bill's passage to their bottom line.
