Ideas rarely enter the world fully formed and ready to go. That’s why he always remains open to changes, even after the idea has been released.
For example, most of Twitter’s main features were user suggestions. People initially copied tweets they liked to share, so Twitter introduced the “retweet.” When one user wanted to bundle together all the tweets about the South by Southwest Festival, he added #sxsw to his tweets, and voilà, the hashtag was born.