Knowing about a new duplicate being marked *might* be of interest to a developer or triager, to let them know that there's activity on the bug even if there aren't new comments.
It is *almost never* interesting to anyone else subscribed to the bug (including reporters of other duplicate bugs).
I would support suppressing these emails entirely.
Knowing about a new duplicate being marked *might* be of interest to a developer or triager, to let them know that there's activity on the bug even if there aren't new comments.
It is *almost never* interesting to anyone else subscribed to the bug (including reporters of other duplicate bugs).
I would support suppressing these emails entirely.