I wonder how they will differentiate between:
1. People expressing sympathy with a bad event (should show up in news feed.
2. People not liking what they need (should not show up in news feed).<p>Interesting UX challenge.
I would assume this is something that the poster will have to set? Because if not it would be quite funny to see "sympathy" floods on posts like "I'm getting married" or "I just had a baby".<p>Would actually be nice if Facebook had the ability to show support or disagreement with a content of a post, as well as some sort of "not interested" button.
Click-bait title, and a clear case of media copying media while not verifying.<p>Zuckerberg does not explicitly talk about a "Dislike"-button but about an button to express sympathy.
see <a href="https://vimeo.com/139401042" rel="nofollow">https://vimeo.com/139401042</a>
"+1" seems like a neutral enough option that endorses the sentiment of the post, without ascribing an emotion to it.<p>Except Google+ is already using it.
It will be very interesting to see their implementation of the 'dislike' button, and the nuances they will have to build into the system to avoid (namely) hate-spamming, etc — the reason for the feature's lack of existence thus far.