Had a couple of people lie about their experience. It's OK since it's them who suffer. I remember shouting for an experienced tank for Titan HM, got one who said he was experienced, took his word for it... We all enter the instance, then he decides to go "Actually this is my first time here...". :| He lost aggro, died a lot, so we all left and he had to start over again with looking for a group and all that jazz. Like, it doesn't bother me if it's the 1 person who lies because, it's them who will end up without a group and be stuck shouting in Mor Dhona for hours. We can just go find someone else.

Though, if it was any other situation, I would take someone who had never done it before under my wing, give them time to learn the fight etc. But when we're doing it for someone else, and someone lied just to get in the group, then sorry, not worth our time.