ranks make players feel special even if all it does is give a colored word in front of the name in chat and nothing else. I think it would be cool if players could earn in game ranks or titles from leveling up skills or through playtime. my preference is through leveling up in the skills plugin personally. Having something that sets you apart based on how much you level up skills that you can work towards could add to new player retention. These ranks could also have small benefits such as a sum of money an extra land claim, an extra shop, a playerwarp, a home, or a rankup key used for an existing or new crate.