Sometimes you want to call a particular user into a discussion. We can now do that with tagging.
Start by typing the @ symbol and the beginning of a username and the system will show you a pop-up with matching users:
Choose the one you’re looking for, or simply finish typing it out, and when you post the thread you’ll see the call-out:
Clicking that link brings up a pop-up profile page:
But the most important thing is that the user referenced will get a notification that they’ve been mentioned in a thread, so it’s easy for them to just join in if they choose to.