Here is the work around. Via TheOnlyDenny.
Tools --> Tracker --> Tick the box of the relevant topic --> Edit Selected --> Untick "Push Notify"
Implies you're going to track it (because it's currently not in your tracked list if you don't track it upon creating it) , but unchecking "Receive push notifications" disables the notifications.
I wonder if the"How long" drop down options have any effect on NOT receiving notifications. I selected 1 week, we'll see.
Sounds like you're kind of reversing the intended procedure of notifications in a way; if that makes sense.
Threads that might help, the work around is a process but it seems to be working, just make sure to redo the process in a year or so when it expires.
https://forums.d2jsp.org/topic.php?t=103047717&f=34&p=657234468#p657234468https://forums.d2jsp.org/topic.php?t=103047746&f=258