Hmm, I can repro it here (iPad Chrome), but I wouldn’t consider it a bug.
If you begin a reply in an existing topic with “@”, an auto-suggest list of topic participants displays.
If however you begin a new topic (hence no existing participants) with “@” no auto-suggest list displays until you enter a character after the @
Kind of like the logic is
-
an “@”, the member wants to mention another member
- a reply, without more info the best possible guess is it’s to a member that posted in this topic
- a new topic, without more info even a best guess isn’t possible
-
a character after the “@”, now that there’s more to go on, suggest from the usernames that begin with that
I suppose the auto-suggest could begin with “0” or whatever the first username begins with, but it doesn’t seem necessary to me.