I wouldn't mind seeing some who are known to blow it to be punished. Some ump blowing a call once in a while isn't the end of the world but it should be noted. If it's consistent or consistently inconsistent with a strike zone, or making bad calls then there should be some kind of penalty. Another example is if an ump seems to favour or single out certain players for an unreasonable or personal matter and punishes them ie calls a strike on a close pitch against a hitter or a ball against a pitcher. There's enforcing your authority and letting them know especially a young, hot headed player, that they have to act a certain way and then there's what we've seen some umps do, take something personal and really overreact. Thankfully that doesn't happen a lot.