Actually,  used in the right context and role play, the masturbation poses, can be very very hot.   Remember, the only thing that stops you is your imagination. 

I masturbate for my man using them, much in the same way as the lap dance pose, to tease & tantalise,  and we usually end up having smokin hot sex ...  yeah baby   

A Peeping Tom pose  or voyeur room would be interesting perhaps for some..  I doubt I would use it, some things are just for me and my man. But I think some people would like this and would support such a pose .