All your friends can write messages in the network. But if Facebook's wall is a confidential message. Slander or hidden with a provocation to readers who do not have enough maturity fall. Conflict and subsequent issues.
Friends, everyone on the network can write messages to your Facebook wall, but if the message is confidential. The Defamation Or implied by such incitement. To make the reader believe that there is enough maturity conflicts. And followed later.
All my friends on the network can write messages down wall of Facebook but if the message is confidential, slander, or hidden with incitement. To make the readers that immature, trusted the conflicts and problems in later.