AFK autoreply
 

There is probably some technical reason but I have always wished for something that existed in older MMOs; an afk autoreply. For example:

I type:
/afk I'll be back soon.

If someone sends me a whisper I could autoreply something like:
AFK: I'll be back soon.

This *might* be easy but I think it could be helpful.

We can't send messages; only put it into the chat to be sent.

This would only be possible if all users got the same addon active AND are in a group or in the same guild.
So nope, most likely not.