sadly most will look at the profile information as "giving away" too much information...
the reality is that far more information is out there about you already, whether you know it or not, or like it or not. Certainly if you participate in any online activity, you leave a trail. For a few dollars, you can get even more "privacy information" about anyone.
This horse has left the barn months ago, the door is still open and there is little that one can do about it.