d45f731d_Pages__and_5_That_Do____Gigaom__Benefits_to_You
[Reason] 2. They are doing it because someone they know did it. [Interactions on Page] Moderate to Low [Benefits to You] 
Not much, unless the person they are following to your Page is engaged – they may “jump on the bandwagon” and become a truly engaged fan.
5 Things That Don't Work on Facebook Pages (and 5 That Do) | Gigaom
Benefits to You