Situation: Someone makes a post asking a question. I spend time answering it. Then the post is deleted.
I can no longer access the post and therefore can not find the author to block them.
What I do have is a link to an empty page.
How do I find the author?


Should, yes. But just FYI; Lemmy does not work that way. Deletion/edit requests are solely up to the instance owners to comply with.