Taking a page from Reddit’s book, Facebook are testing an option to downvote a public page post.
A Facebook spokesperson stated:
We are not testing a dislike button. We are exploring a feature for people to give us feedback about comments on public page posts. This is running for a small set of people in the US only…
The test is only with 5% of the English speaking US market that uses Android phones. During the test, any downvotes will not affect how the post (or corresponding posts) are ranked.
At this stage, Facebook has no plans to expand the test and it will only run for a short time. The goal, of course, is to try and work out a way to actively measure “meaningful engagement”.
I am quite curious to see the results of the test.