Is there a way to list all posts that someone is using as an avatar?

Munkelzahn said:
Is there a way to list all posts that someone is using as an avatar?

Not that I've ever seen.

I thought that there was once, I somehow remember checking if mine was used by someone else unless it was some kind of fevered dream.
Which it could have been. :-/

You *could* use the API to query every user and look at their avatar_id:
https://e621.net/help/show/api#users