Twitter Now Lets Any User Send You Direct Messages (If You Enable It)
The new feature started rolling out today. To enable it, head to your account settings page , and scroll down to "Receive direct messages from any follower." It's unchecked by default. To allow your followers to send you DMs without you having to follow them first, check the box.
Of course, if your followers just start hitting you with DMs for no reason, you can always come back and uncheck it, but it's a nice tool to have on standby to avoid people who beg for a follow back to DM you something they could have emailed (or worse, once you're following them back, pester you with additional messages). Hit the link below to read more about it. [via