Yesterday, I published a Plugin Request for the mcMMO plugin (from Songoda Marketplace), and I was answered that author's consent was needed in order to implement it, and the author "didn't give a clear answer". I asked the author (nossr50) on the mcMMO Discord Server, and he said that "They can do as they please" and "If they want me to explicitly give permission they can feel free to contact me" (The messages' screenshots are attached and all the conversation can also be found on the mcMMO Discord Server, Feedback channel). I think it can be added now, since there's the author's consent. Thank You!
Screenshot 1:
Screenshot 2:
