How much of a fan are you, of a particular company? Do you “like” pages of companies and celebrities, to follow them on your Facebook feed?
If you “like” someone or something, you are allowing that entity to access your page – to see your friends lists, birthdate, photos and other likes, etc.. For this reason, you should be wary of what or who you like.
There are some companies in which I do not mind giving them this info. My page is “locked” down, in any case. Only certain people can access my photos, and not just anybody can add me as a friend. My page is also not public. I’m sure if I had hours to go through each privacy element in Facebook, I could lock it down some more, but I don’t have the time. Frankly, that is what Facebook is hoping for – make it so tedious to lockdown your Facebook page, that only the dedicated and very concerned individual would spend the time that it takes to tighten all the security features. Facebook’s business, afterall, is to sell your information – to give your information away to advertisers. Facebook is an advertising tool, a data mining tool.
Therefore, I highly discriminate against who or what I like, and everybody should do the same too. Protect your information. Be a snob when it comes to who you “like” or share things with. Your information is treasure to others. When you have a bit of time in your day, and you are logged into Facebook, review your privacy settings, and review your likes and shares. I do this from time to time, and “unlike” and “like” in a picky manner. There is nothing wrong with refusing to share certain pieces of information about yourself!