1. Other MMO's have instanced environments (which can be extensive) for one party or two and a Notorious or Named Monster, are they now CORPG's? GW is different in many ways; where others focus on the non-instanced gameplay, GW does not, therefore its the a different breed of the same animal.
2. As per the "Economy" we will see Anet continue to tweak, nerf, and so on for the length of the life of the game. It is a living organism and will have a continuous need for revamping.
3. Anet will never be able 'fix' the biggest problem of all online games. They can't prevent dipshits and assholes from buying it. The ignore list is the closest thing we get to being able to filter our experience. Whether its scammers and their ruining the economy, or blind (perhaps mentally disabled) players who take quests in the underworlds killing dozens of others. Hope your guild is a good one!

Oh wait was that a guild member who just got us all killed....