At least booking through emails you can see their profiles, their feedback their alises can get them to send a photo and if i turned up and it wasnt them I'd go home annoyed lol.
Firstly, you're conflating 'emails' with 'Adultwork'. I take most bookings by email, but they come via my site and other ads and not AW so there's no 'feedback' and no 'profile' to see. This puts me in no better/worse position, because Adultwork feedback/profiles don't tell me anything useful and it's important to remember that ALL new punters are random people, because you don't know them
.
If you're thinking of trying to get punters to send a photo of themselves, I'd advise you don't - I can't imagine anybody would agree to it as punting isn't dating, and you don't have any good reason to know what they look like? Part of the point is anonymity, and that's some of what they're paying for.
I know its not foolproof but must be better than a random person over the phone???
Also what's the difference between text and call other than you can tell if they are male or female
It depends on how you work - I don't think phone calls are necessarily any better for reading people than texts or emails, and a lot of people come over badly on the phone (me included, and I avoid using it at all costs bar for confirmations unless I'm working somewhere that means a lot of short notice appointments). The useful part is basically the bit you've figured out above (and I'd add being able to tell it isn't a child messing about, too).