Another dungeon newbie here!
I’ve been playing GW2 for about 5 months now and haven’t gone into any of the end game content, mostly because of the same reasons as Nodo. I used to be very active in another MMO – was a leader of a guild even, helped many people through the game, I raided and did instances with little problems. However, after some unpleasant stuff went on, that goes beyond just your average name-calling, I wrote off most of the social aspect as a tiresome gamble.
As a result I have a general picture of what runs are and what they include (and how much fun they can be!), but also of how people can get, and that makes me nervous and very hesitant to sign up for anything.
I read the forums and the wiki a lot, hunting for information about dungeons and how to do them, but I know from experience that reading about it can only get you so far. I’d like to get into it all one day, learn and have fun on the way… On the other hand, I don’t want to slow down people’s runs and/or be negatively targeted by those who forget that everyone is new at some point.
Just my two cents 