Twitter should implement a policy that if you DM someone, they should always be able to reply, even if you don't follow them.
@felixsalmon @jeffjarvis How do you DM one another without following each other?
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@felixsalmon @jeffjarvis How do you DM one another without following each other?