I can only speak for myself -- but I use as a means to keep in touch with family and friends. Some of these people only live a hundred miles from me, others live 4,000 miles from me. It's nice to be able to share photo's with the group, stories, and email.

I have had requests from well known marketers to add them but I always politely decline the invitation saying I am not using Facebook for any marketing endeavors, simply using it to stay in contact with friends and family.

So I don't have any knowledge of any "widespread incivility on Facebook", since I don't ask associates to add me to their group(s).

Best Regards,
Steve MacLellan