The social network announced it would remove from its Facebook pages any "I Likes" that does not respect its conditions of use. Thus the mass purchased "Likes", or those obtained from malware or compromised accounts, will be removed.
1% of all the "I Like" are affected by this action adn will be automatically deleted.
According to Facebook, this change will allow brands to rely on more accurate statistics for a qualitative interpretation of data on their key performance indicators, such as the commitment rate, which enables brands to identify which shared content on Facebook is the most efficient.
The announcement of Facebook