In reply to pasbury:
It isn't! Charming Crack is horrendous, or at least it used to be, because it's (was) lined with vicious quartz crystals.
There is a deliberate misnomer at Joshua Tree called Friendly Hands, which looks from a distance like a perfect hand crack cutting through a slightly overhanging bulge. It is only when one gets up there that one finds it's actually a shallow, flared crack that will only take very insecure jams - and only then does one realise that the name is a joke to lure one up there!
But it's not as evil as Charming Crack!