I'm sure this has been said before, but I think there should be a more easily visible leveling system, like where you can see your progress on the xp bar above your hotbar... something like that. I honestly can't stand having to do /level to check my level every time I want to check what level I'm at and how many XP I need to get to the next level. Maybe if not the XP bar, the scoreboard on the right? I don't know, it just seems like they didn't put much effort into the UI of the level system. Maybe something like the way the Hypixel Pit does their leveling, but I don't want to seem like I'm saying their system is better just because it's Hypixel.