Only folder owners and co-owners can send collaborator invites and add this folder to a Hub
In the Box Support article: https://support.box.com/hc/en-us/articles/25870093558675-Adding-Content-to-Box-Hubs, it says this checkbox reads "Only folder owners and co-owners can send collaborator invites and add this folder to a Hub"
The actual setting in Box only says "Only folder owners and co-owners can send collaborator invites" leaving out the part about Box Hubs, this needs to be updated.
This also relates to: https://pulse.box.com/forums/909778-help-shape-the-future-of-box/suggestions/48513617-unable-to-add-a-content-to-a-hub-site-due-to-folde where this setting really makes no sense as inviting collaborators really has nothing to do with attaching files and folders into a Box Hub.