What is the function of "my fluther"?

I checked out the “What is ‘your fluther’?” in the FAQs, and then I added a few people. But I don’t see how anything has changed since I added them. The last part of the answer in the FAQs says, “By creating your own fluther, you can filter the whole site based on people you’ve hand–picked: it’s guaranteed to be fascinating!” However, I can’t figure out how my fluther actually filters the site. Everything looks the same now as it did before I had a fluther.