I barely use LFG, but picked up 1 guy at Oryx and honestly was impressed. Real chill dude, that even ran a fresh right after with us on our alts even though he was finished for the week. I think its just select groups that dont have the confidence unless they have more experience raiders in the group. My group on the other hand consistently beats Oryx first try so we dont mind bringing in 1 or 2 "noobs".