Anecdotally, I had a friend who 'liked' an apartment rental company, and it took me a number of postings to realize that he was not suddenly looking at 7500/mo Beacon Hill palaces on a bartender's wage. At first, I thought he was just clicking like on a beautiful apartment regardless of cost, but as "liked" listing after listing showed up over the course of about two weeks, I realized something was up. It can be that confusing.