There are times when I am writing a Forum posting or response and I want to mention a particular person easily, as I know they have insight into a question. It would be handy to be able to put usernames into Forum postings with @ following by their name (like Twitter, Slack, etc.). Then maybe searching by the user handle could be added to the search terms. Finally, for user preference, perhaps this could be settable in my community profile, so I could indicate if I want to be available to be mentioned in that way.
Actually it is not just in the forums where i would like to be able to do this. But also in the rich text widget itself. if they could somehow incorporate this in their widget it would be of great use to us.