The screenshots say a lot; and given your past performances I'm not inclined to believe people would lie to get you out of the guild. If you lag... Then sorry, not my problem. It even says in the app, it does not matter how good of a player you are....if you have a crappy Internet connection, then you won't be here for long. Effectively you are as much of a deadweight as someone who doesn't know how to play their class. Can't have that in raids.
EDIT: Anyways I'm not arguing about that here, if you want to justify yourself, there's the Gkick appeal forum for that. Thread locked.