I wanted to comment on something in this answer. But when I type
no auto-completion kicks in.
If I type out the users name, the whole
@name is removed from the posted comment.
Why is this happening?
If only a post's author and one comment are having a conversation then any
@ notifications between them are removed from the start of comments on the grounds they are considered noise because post owners are always notified of comments whether you
@ them or not.
This will not happen if any other person is involved in that comment thread.
For the sake of completeness, I guess I should point to the How do comment @ replies work? FAQ post, in case you want more detailed information in general.
As a side note, comments that attempt to ping multiple users (ie, multiple
@'s) are also blocked, the work around (backticks) will cause only the first
@ to be notified.