There is virtually no social network without a like button. Some like twitter have both a like and favorite icon, while others like Instagram also have a heart icon besides the free likes’ icon. Of course the main aim of the like icon is allow people express their joy, excitement or appreciation of other people’s posts by liking their posts. All the social networks have additional icons also, but the free like icon is relatively the most interesting of all them.
If this icon never existed, millions of Facebook users could probably have quit ages ago. Most selfies lovers on Instagram would have no business with the network if people never had the ability to like other people’s pictures. After all, what would be the measure of success on social media if people never had a way of expressing their emotions on your posts? However, there are still few networks that would somehow exist without a free like icon. YouTube and musical.ly for instance would still be popular if the views icon were left intact. Twitter and a few other networks would still have fans, but not the millions they have today.