FWIW, these Facebook threads have been posted before and have never been much of a hit. I know I for one don't want to post a direct link to my personal life, allowing those I choose to ignore to try and bug me outside of this forum. And I'm sure many feel the same way. For the most part this has been one of those, if I wheel with you and know you personally, you'll end up on the friends list one way or another.
With that said, don't feel bad if people aren't posting their links.