What is the difference between posting on my wall and posting on a friend's wall?
If I post to my wall, all my friends can see it (at least all of those who subscribe to my wall see it). If I post to a friend’s wall, all of their friends see it.
What is the difference? Why would I post to my wall instead of posting to a friend’s wall?
Secondly, is there a way to know who reads/subscribes to the posts on my wall?
This question is in the General Section. Responses must be helpful and on-topic.