Several of the 'hookup or hook up' profiles show as being accessed from Nigeria. I suspect that they are aiming for deposits via gift vouchers etc. AW seem to deactivate them after two or three days but every day a few more appear. There does not appear to be any element of a private photo gallery scam, but even a guy sitting in Nigeria is not going to create these profiles unless there is some form of monetary reward. If you want to see just do a text search for hookup or hookup without specifying anything else (this should bring up the deactivated ones as well). The few photos that these profiles have can nearly all be matched on Yandex which proves they are not genuine.