I know most people in my network, but some I don't know.  I really dont expect any one to reply to what I write all the time, but I've noticed that there are a few who come to visit on a reg basis and never have said anything.  Something about that makes me feel weird.  I guess it must go back to a memory I have forgotten.  So I have rearranged my network.  I have not taken anyone off of it but I no expose everything to 'everybody'.  I have left my stuff exposed to the commenters and will keep writing in visible mode for them.  But, the others who I either do not know or who do not reply have been placed in a category that have fewer priveledges.  If you want to be moved over, all you need to do is dialog with me sometimes on some entries.