old Bird Site UX
@Felthry So it used to be, if a tweet started with a username it would only be visible to that user and people who follow both of you. If you wanted to reply AND show your reply to all your followers, the common practice was to sneak a . in front of the username.
old Bird Site UX
@Felthry That when away when the pulled the user tags out of the body of the tweet and into metadata.