Most of that, is to give an easier overview as to whom you're talking to on the community.
I as admin / staff hold the "Staff" rank
Mix Challenge Song Providers/Clients get the "Song Provider" role for the course of the game in question.
Wild Card users (for the Mix Challenge) either have the ranks "Wild Card x1" or "Wild Card X2", as indication who already used that mechanic. Every user on the community has 2 wild cards.
Backers (Patreon, PayPal, other financial support, etc) get the "Backer" status, and sometimes early access to posts or new planned community features.
I technically set up ranks for more, but this is the important stuff.