When 'friends' post on Facebook, they are putting their message on my feed. That's fine, that's the implicit agreement. Also part of that agreement, when I co

When 'friends' post on Facebook, they are putting their message on my feed. That's fine, that's the implicit agreement. Also part of that agreement, when I comment on their post. That's where most problems arise for me. I typically unfriend people when they're offended when I question their post.