I expect that the motive is - EXCLUSIVITY. FaceBook membership may give a person the ability to create a "privileged club" type situation. Friends are allowed in, but others can only catch a slight glimpse of things.
Hmmmmm, . . . just asked Google the question and it led me to this link that helps explain FaceBook privacy settings - http://www.adweek.com/socialtimes/faceb ... new/312299
Things get clearer when you understand the details. Much like the "real world", strangers know the least about you, acquaintances know a bit more, casual friends even more and close friends more still. Family members know the most. Seems like FaceBook gives members the ability to manage access to personal content in a similar way.
Nothing very sinister about that. That is, once you know how the system works. Not being a member, I knew that some FaceBook pages are completely blocked to "strangers" but others are (now, obviously) partially blocked, or totally open to non-members.
bobk wrote:Hmmmm....
Why would an average Facebook member want to post something that would be viewable to all other Facebook members in the world, and yet NOT viewable by non-Facebook members? What would be their motive?
I can understand someone wanting to post for their friends only - regardless of Facebook membership. But I'll bet it's very very rare for an average Facebook member to want to post something viewable to all the millions of Facebook members and not to non-Facebook members.
Who would have a motive to use such a protection scheme? . . . Facebook?