I don't think it makes the game very fun in the long run when you see the EXACT same decks over and over again. I often face the same rotation of 2 to 3 decks over and over again. I understand this is because a meta will emerge in any competitive game, however it takes away a lot of the fun for people that enjoy building their own concepts and do fairly well in general but get sick of seeing the exact same mono red deck or Vivi deck over again. a nice solution to this, in my opinion would be to make people that are clearly net decking go against each other more often and sparing the rest of us from this lazy, thoughtless way of copying high ranked players. I have noticed you guys actually encourage this o your home page by advertising the most successful decks. to me that is a self-fulfilling prophecy. if a deck is played in 75% of all games, of course it's going to have a higher overall win rate.