Twitter's value proposition is it's community now by far, not the character limit gimmick. Just allow expanded posts as a UI option, so that it still feels like

Twitter's value proposition is it's community now by far, not the character limit gimmick. Just allow expanded posts as a UI option, so that it still feels like "Normal Twitter" most of the time and if users want to post a blog length tweet, allow that in a sane, readable way. Have people need to expand it, so it doesn't break the existing UI.