After almost 3 years of having ranks, MLK is gonna adopt something different! Instead of getting a certain "rank" by getting a certain number of posts, members are now allowed to choose their own "custom title." This title will appear in the same place as the old ranks did, but unlike ranking members by the number of posts they have, titles are just for fun. For example, my title is "Tea Drinker."
Custom Titles can be changed in your UCP. Go to Profile -> Edit profile and scroll down to "Custom Title"