If you're active on Twitter, you're familiar with the following scenario: someone you follow sends you a DM, but your efforts to reply are stymied by their stubborn insistence not to follow back (which we're sure is entirely their loss). But the old Twitter ways are changing; now, users can opt-in to receive messages from any ol' follower without the need to follow back. Holders of existing accounts will have to go into their settings to enable the feature, but new accounts will come with it already activated, so if you're thinking of signing up soon, bear in mind that opting out is on you. If you find yourself unable to access this new and exciting capability, then have patience, young padawan. Twitter is rolling out the feature gradually, so we'll all just have to wait our turns.