Having an option for Community Members to create an "Out of Office" like you can in email clients would be helpful. Having a something like an icon or something like that by the members avatar to indicate that they are out of office would let other users know that person may not be able to interact on the Community. Each member would be able to change their status within their Esri Community profile.
That's a very interesting idea, @Brian_McLeer, and I could see how that would be helpful in a few different ways. It's something that our platform doesn't currently support but it's something we'll keep in mind as a potential future enhancement if/as more options become available.