Facebook June 2010. After extensive testing and years of questions from the public about whether it had an intention to incorporate a "Dislike" button, Facebook officially rolled out "Reactions" to users worldwide on February 24, 2016, letting users long-press on the like button for an option to use one of five pre-defined emotions, including "Love", "Haha", "Wow", "Sad", or "Angry". Reactions were also extended to comments in May 2017. Facebook Messenger is an instant messaging service and software application. Originally developed as Facebook Chat in 2008, the company revamped its messaging service in 2010, and subsequently released standalone iOS and Android
The Button (Reddit) and creator of the button "powerlanguage" announced the forum would be archived within ten minutes. The experiment ended with 1,008,316 logged button clicks. The Button experienced technical issues which caused it to reach zero despite users pressing it in time. This occurred multiple times and was attributed to database errors by reddit's administrators. The outages caused community discontentment and some speculation that the subreddit was being gamed by the administrators. Although The Button was revived within a day of the outages, the administrators of Reddit considered closing The Button experiment early. The inherent segregation on this specific Reddit community (subreddit)