This sort of thing can only further degrade the quality of information that Facebook has at their disposal. Let me elaborate: When Google started with Pagerank

This sort of thing can only further degrade the quality of information that Facebook has at their disposal. Let me elaborate: When Google started with Pagerank, making a link was technically hard, so each link was a vote of confidence made by a person, who is on average technically literate, and so on average is well-educated. As the first CMS systems emerged, they were still a pain to use, so only the most motivated people were making links, presumably those people also put some effort into researching their subject. The community of less educated and/or motivated people then could use Google to discover information that was effectively hand-sorted for them by the more educated and motivated. As adding weight to the link graph became easier, the quality of information began to fall. Enter Facebook - liking a page is the easiest thing you can do, takes no effort and there are no educational barriers. On the contrary, the most educated people will see this sort of shenanigans and they will stop "liking" anything at all. The less educated will continue to "like" things left and right, making it even more repulsive for the educated. Long term the entirety of information Facebook has in their possession is filled with celebrity gossip, urban legends, chain letters, cute kittens, horoscopes, feel-good wisdom quotes, etc - all that information that is heavy on emotional engagement, but light on actual information. There in lies the problem with "social search" - garbage in, garbage out.