It's disappointing that such an elaborate article omits that the "Like" was originated in FriendFeed which Facebook had bought. Upvoting was obviously a thing b

It's disappointing that such an elaborate article omits that the "Like" was originated in FriendFeed which Facebook had bought. Upvoting was obviously a thing before FriendFeed too, but its specific form to signal the public with your opinion on a social feed had probably started with FriendFeed. Facebook had literally bought the Like button.