User blog comment:Supp0rt4n00bz/Some Champs need a nerf!/@comment-5686533-20130520085617/@comment-5877442-20130520173739

^He was saying why don't they buff ALL the "up" champs, not just some. This then means nerfs are not nessecary.

My answer is that there are a lot more UP champs then OP ones, it would simply be easier to nerf the OP ones. Also, the benchmark of champ balance is less than the OP champs' balance, so nerfs are needed. Obviously, they can still buff some REALLY UP champs (and some UP-ish champs).