In an existing issue, when modifying the reporter, the dropdown/suggestion list yields all JIRA users. I can't think of a reason behind this. After all only a selection of users has a proper role in the project, related to permissions such as Browse Project.
Why would one want to select a reporter who has no rights whatsoever in the project?
Or am I missing something? E.g. a permission that states who can be reporter, or the like.