This is a relatively simple feature request (I think), which would be to have some sort of auto-reply option for messages. As the main teacher of a course i've been getting a lot of DM's in our community center, but this isn't the format in which I answer student questions or communicate with them. So it'd be nice to either have an option for someone to NOT be able to receive DM's, or to have some sort of autoreply option to automatically send someone a response that can be customized.