To get users started as quickly as possible, there is a walk through of suggestions. For example, people to follow, and companies to follow in order to make the site/webapp immediately useful. I can imagine the number of people registering, just for the sake of registering, but not realising the value of the service, because not much time was spent “setting up”. This set up guide would decrease the number of dormant accounts, because the users would have a reason to come back. The service already has data, that is interesting to them, and not just a blank wall.