How times have changed.
Today, Facebook removed its users' ability to control who can see their own interests and personal information. Certain parts of users' profiles, "including your current city, hometown, education and work, and likes and interests" will now be transformed into "connections," meaning that they will be shared publicly. If you don't want these parts of your profile to be made public, your only option is to delete them.
The example Facebook uses in its announcement is a page for "Cooking." Previously, you could list "cooking" as an activity you liked on your profile, but your name would not be added to any formal "Cooking" page. (Under the old system, you could become a "fan" of cooking if you wanted). But now, the new Cooking page will publicly display all of the millions of people who list cooking as an activity.
Cooking is not very controversial or privacy-sensitive, and thus makes for a good example from Facebook's perspective. Who would want to conceal their interest in cooking? Of course, the new program will also create public lists for controversial issues, such as an interest in abortion rights, gay marriage, marijuana, tea parties and so on.
But even for an innocuous interest like cooking, it’s not clear how this change is meant to benefit Facebook's users. An ordinary human is not going to look through the list of Facebook's millions of cooking fans. It's far too large. Only data miners and targeted advertisers have the time and inclination to delve that deeply.
There is one loophole — tell Facebook you're under 18. Under Facebook's policy for minors, your interests would only be visible for friends and family and verified networks. You would not be publicly listed on these new connection pages.