Board Thread:General Discussion/@comment-4731447-20150714000925/@comment-24986099-20150715213607

Admins and patrollers DO have forum mod rights but a pure forum mod is more focused on a single task and that allows them to get that specific job done more efficiently, as they're less likely to have distractions in between for un-related subjects.

You see, an Admin has all rights while a forum mod would have just forum mod rights, meaning that an admin may have other duties to perform (such as deleting un-used images or dealing with vandals, for example) and the forum mod would be able to focus solely on the forums.