# How to find out why a post was deleted

It would help to know why a post was deleted, I believe in this case automatically by a MO monitoring robot. I am not judging the decision, but would like to know why, to avoid asking such questions in the future, that could also be deleted for unknown reasons.

The question I am referring to (not sure if anyone can still see it) is:

https://mathoverflow.net/questions/398151/some-stuff-related-to-the-twin-prime-conjecture

It's not the first time one of my questions is deleted, but have no idea what caused it, so I have no idea how to prevent it in the future.

This is not a criticism, I manage myself a community website and also delete posts without providing reasons (it usually falls in 4 categories: irrelevant, too basic, spam, or self-promotion / commercial post).

Any help is appreciated. As far as I know, I did not violate any MO rules, but I could be wrong.

• The net score might have been zero, but that doesn't mean no one was interested. When I looked, it had three upvotes and four downvotes, for a net score of $-1$. You can look at mathoverflow.net/users/140356/vincent-granville?tab=reputation to see when you got upvotes and when you got downvotes on that post. Sep 4, 2021 at 9:08