I don't think guilds should be punished for poorly written encounters. If you release an encounter that is downright buggy to the point you can force a boss to basically shut down, it all falls to the programmers and devs. With that said, how exactly is it an exploit when they use a game mechanic to counter what the boss is doing? So we're all supposed to conform to a set methodology in order to "compete" against one another, but the second someone finds something within the rules that just outright blows the competition away it's an exploit...yea totally makes sense. Maybe we should do this at things like the Olympics too. For you know, the spirit of fairness that we're instilling into child that basically says it's ok you don't have to try hard, you'll get your shiny trophy in the end anyways.