How many pages and posts have you "Liked" on Facebook? Probably a couple thousand by now. But, what if you want to express the opposite opinion? Right now, Facebook users don't have a "Dislike" button to express their displeasure with a friend's post, but that could change in the future.
Mark Zuckerberg doesn't want to create a button that just allows people to complain. At a user Q&A, he said that using a "Dislike" button to give negative feedback is bad for Facebook. But, that doesn't mean he's against the idea of a "Dislike" button altogether. He's looking into ways that disliking something "could be a force for good."
There are some events that people don't want to "Like", such as sickness or tragedy. But, people still want to let their friends know that they've read the post and are affected by it.
“The thing I think are really valuable is there are more sentiments just than people like something,” he said. “There are things in people’s lives that are sad, or that or tragic, and people don’t want to Like them. We’ve talked about for a while how can people express a wider range of emotions like surprise.”
So, it might not end up being a "Dislike" button at all. Facebook could go with a "Surprised" or "Sad" button instead. Whatever it ends up being, it sounds like any plans for new buttons are far off, so I wouldn't expect to see a "Dislike" button anytime soon.