Why is Facebook satisfaction dropping?

There have been a decreasing number of Facebook users which is clearly based on the satisfaction these users get when using Facebook. Facebook’s satisfaction statistics have dropped by eight points based on a statistic published by the ACSI (American Customer Satisfaction Index), leaving its current score at 61. The eight point drop in satisfaction doesn’t seem that bad right? Wrong. The drop means that Facebook is the fourth-lowest score among all the 230 companies surveyed in the “e-business" category.