Social media users who don’t like brands on Facebook are primarily deterred by newsfeed clutter 47%, while many don’t want to be contacted 36% or are concerned about their privacy 30%, finds Lab42 in September 2012 survey results. Clutter was also the culprit for unliking brands: among the 73% who have done so, brands posting too frequently was the top reason why. March 2012 survey results from Chadwick Martin Bailey CMB and Constanct Contact similarly found that over-communication was a leading turnoff for Facebook likers.

via Frequency of Posts, Unwanted Contact Discourage Brand Likes On Facebook.