This is one of the idiosyncrasies of this site engine.
When someone deletes content with active notifications (i.e. other contributors have answered or commented it), alert is sent to linked contributors just the same as when content is update. It is indeed an update, even if this is a removal update.
You get the previous content in your notification log. But if you click on the question/answer link to read the present content, you can’t because it was deleted. And the notification doesn’t get automatically cleared because you haven’t read the new content. And this can’t be done because it is no longer there. The notification remains in your log and the envelope icon remains red.
Deleting an answer removes comments attached to it.
Deleting a question removes all answers and comments.
You can clear the condition:
- open your user profile and go to the
Notifications tab
- tick the check box at left of “Xyz edited question/answer (h hours ago)”
- click on mark seen or delete link at top of the page
Many newcomers don’t realise that deleting content they deem no longer relevant or they regret to have asked causes trouble to people who took time to comment/answer the question.
PS: your question is about the AskLO site (meta tag); please, remove common tag. Also, AskLO is formally not a forum, remove also forum (and maybe ask because it is not specific enough).
To show the community your question has been answered, click the ✓ next to the correct answer, and “upvote” by clicking on the ^ arrow of any helpful answers. These are the mechanisms for communicating the quality of the Q&A on this site. Thanks!
In case you need clarification, edit your question (not an answer which is reserved for solutions) or comment the relevant answer.
- in times of corona 
