If hits are so important to a newspaper’s website…

…why don’t they limit the amount of an article that goes to a feed reader?

For example, with Google Reader, I can pretty much read the Guardian in its entirety without actually having to click through to the website. Why don’t they limit the amount of an article that feeds through to readers, teasing you to click through and read the story in full on the website? It’s not just the Guardian who do it, either.

Maybe I’m being stupid – am I missing something?