???? Are you kidding buddy? How is that griefing? You think if someone pk's your afk farm he's griefing you? Do you not understand the concept of the game?
The design is simple : PVP Open world RPG, lots of people will complain about the P2W and etc., but that has nothing to do with the concept of the game. You are supposed to be at risk at all time, I don't even understand how do you people come to such conclusions.
As for the cake event, only thing that can be said is that maybe the timing of it is a little bit unfortunate. The event itself seems like somewhat of a let down either way.