User blog comment:Hidden Sniper/Riot's hand in the meta as we know it/@comment-81.156.2.46-20121002172544

Riot make the game slightly unbalanced so that the meta CAN evolve. If you look at a game like Starcraft 1, then you see that the full balance only allows for certain strategies up to a certain skill level. Besides, the whole boots'n'pots first and AP mid wasn't riot. I remember when neither of those were meta, and each have their own reasons for coming about (skillshot chamos became popular without buffs)