I was looking at a question, and I noticed that one of its answers started with greetings.
I clicked on the "edit" link, but with my surprise the greetings were not present.
Looking at the post's revisions, such text has never never been present. Supposing it was removed from a background script (which I remember was run once to remove greetings at the beginning of a post), why was the text still showed?
I added two empty lines at the beginning of the post, and the greetings are not anymore shown. Still, I am wondering what happened.