Hi there thanks for posting! It looks like you submitted a support ticket as well but I'll answer your question here too in case other users have similar questions. When users create diagrams through Confluence those diagrams will still show up in their Lucidchart account as being created by them. So if you go to delete a user any diagrams they created through Confluence would still be counted in the "documents created" section and would be transferred if you were transferring their files to another user. Hope this helps!

Thanks Maison