Some people, myself included, would rather have 3-4 pops a day that are genuinely good matches rather than 30 pops a day of pure rng madness with climbing being dictated by awful matchmaking. A tier above diamond is in order for the veteran/skilled players to achieve to stay higher on the board or climb even further by playing with only diamonds where those quality matches will be decided by skill, not luck with matchmaking like currently.

Guild Wars 2 had a neat cosmetic emblem next to your name based on your tier in that current season, Feast adding an emblem or your ranking number next to your name is a very nice incentive.