Unfortunately, there are people out there that will get frustrated that other people don't know the content yet, even though they probably just learned it a few days ago (I mean the game has only been out a couple of weeks!). If people get annoyed that a boss mechanic throws you off because you are seeing it for the first time...well, that is wrong IMO. I am not really sure why people get so annoyed/frustrated/angry so easily in MMOs. If you wipe 25 times, sure, that is frustrating. But I don't know why people would even want to play if a simple thing such as a person being new to a dungeon gets them so worked up. It seems like the game wouldn't even be fun if it gets you so in a twist. It doesn't take much effort to extend some common courtesy. That aside though, I always try to read up on all the strategies before I do a new dungeon because I know everyone is going to expect me to know what is going on. It's not really fair, but, that's the way it is.