Overall, Model Mayhem sucks & avoid it like a plague! It's only a matter of time before the site crashes & burns (which it will).
Homer: Don't. It's unprofessional & shitty. It's full of pervy photographers who just want to see you naked & idiot moderators who exert their power plays & punish you for name-calling on the forums.
Skeeter: Okay, nevermind. I don't have to join to know that site sucks cock
model2 - not yet, should I?
model1 - go for it! Just watch out for perves.