Whoa now. This is the second comment in a week in the NM area chastising the photographed climber for not wearing a helmet. While I can appreciate the point being made, if MountainProject users go around making a "where's the helmet?" comment on every photo of a climber not wearing a helmet, we'll have a ridiculous amount of identical comments and therefore I don't feel these comments are necessary.
As a sometimes-helmet-wearing climber, I like seeing other climbers in helmets but don't get worked up when climbers aren't wearing helmets, especially in well-traveled sport climbing areas where the need for a helmet isn't as pressing. Sure, I realize a multitude of different things could happen in an overhanging sport climbing area but the risk is quite minimal and the situation isn't deserving of a "hey, where the hell is your helmet?!?" comment.
I climbed at Shelf Road this weekend and temperatures were so hot I didn't wear my helmet most of the time to avoid excessive sweating (it really makes a difference to me!). There were photos taken of me not wearing a helmet and I don't need to hear comments about my lack of wearing a helmet. It was my choice not to. And that's the awesome freedom of climbing--we can do what we want in a individual, non-competitive sport.