^ Dude, by that rationale, people who do not have facebook profiles don’t get their heads chopped off 
But yea, one should not give out all information on networking sites.
Why dont you do the mods a favor and identify the twerps, shmucks and cheap people you see here on GS? Stalkers dont have it written on their forehead, you could be one for all I know. The funny part is, those hardcore stalkers hardly ever appear as a-holes, they could be one of the nicest people you have ever known online. Getting the point?