My guess is that they have a sitemeter tracker that shows where their visitors come from. They were able to see this thread in FR and what it was about and so they changed the article.
There’s a part in the article about how the Anne Owens lady interviewed a student who said something to the effect of “I don’t want to be racist, but like, MySpace is just ghetto.” The article then goes on to says that “that’s when it hit her [Owens]”. Owens then proceeds to talk about how Facebook was essentially being overwhelmingly used by whites in an attempt to separate themselves from the “ghetto” users on MySpace.
What I don’t get is that there aren’t any barriers to joining any of these sites. No one is excluded from joining. If certain types of people prefer a certain site, WHO CARES?!