Twitter Inc., in the midst of an identity crisis, has turned outward to its millions of users for ideas. CEO Jack Dorsey sought suggestions via tweet, using the hashtag #Twitter2017 While responses spanned clamping down on online harassment, filtering spam, and improving the site's optics, one request was especially prominent: give users an edit function. Good news for Twitter users: Dorsey says Twitter is considering all of these things, including the edit-tweet functionality. “We're thinking a lot about it,” he added.