516e7fe4_Brands___El_Weblog_de_infragon__1
[0] User Privacy Woes [2] As users become frustrated (albeit, a small vocal amount), trust in Facebook will diminish, and brands will also lose interest in investing in Facebook. [3] Although consumers say they care about privacy, but in most cases, don’t expect them to do anything about it until it impacts their personal lives. [1] 
There’s been much written (read the Q&A with a FB exec) about the privacy woes as more content is public, with complicated privacy toggles and controls.
Matrix: How Facebook’s ‘Community Pages’ and Privacy Changes Impact Brands | El Weblog de infragon
1