There are other threads discussing some of this, but more specifically I'm wondering how broad you define "unlimited"...
With an unlimited (or enterprise) license... what is your view on the inclusion (or exclusion) of granting rights for use in applications / website apps / servers that allow outside customers not affiliated with the Licensee to use the fonts to create their own digital designs or physical products, or purchase a pre-designed template? Thus allowing the Licensee to generate revenue from those cases.
(This is different than embedding in a mobile app or code for branded text styling, and also different from an internal server for automation or sharing of the font use within the company... which I consider to be included in the unlimited license.)
The user is no longer an employee, contractor, or third party that is working for the Licensee or their projects.
So do you specify those kinds of uses as being a separate thing that the Licensee can have added to the unlimited license for an additional cost? Or do you consider it included as part of the typical unlimited deal and cost?