Making friends with the resort staff seems like good general advice for mega renters. They can provide better customer service. Maybe give your guests a better unit. But relying on a friend to avoid the guest fee seems sketchy to me. What happens if the friend is not there that day? Why if there are new employees at the resort? And the idea of slipping the "friend" a 20 or giving this person other gifts makes me uneasy.
I have more than one friend. but I dont play games with Wyndhams rules.. I figure out how to work with them and I spend thousands each year on guest confirms..