I agree with Matahari, but I guess thats why we are an awesome guild filled with some awesome people.  Majority of issues I see with PuGs is the I'm better and smarter then everyone you all suck listen to me attitudes.  We dont have that in this guild; not that I can tell at least.  Willingness to listen learn and the drive to progress is what I think makes a guild and all of us yesterday had that learn from mistakes drive on.
Case in point: on one of our spine attempts there was a declare for a wipe, but we didnt and made that pull our best pull (downed the tendon on first try).  I'm just saying...I like my place/progression in this guild and really enjoy playing with the people 

 very good guild and everyone in it.