Wayfarer can be very challenging when you first start submitting for many reasons!
Here is a link to a topic in the recently added Criteria Clarification section that addresses Disc Golf Courses - Golf & Disc Golf Courses
Another thing to note is that you nominate to the Lightship database. Each Niantic game (Ingress, Pokémon Go, Pikman Bloom, Peridot, and MHNow) all have their own inclusion rules and use the database. Others on the form can explain the details of this for Pokémon Go better than I can.
Hope this helps!