I've turned guys away for such little things, but I can afford to, and this isn't a full time job for me so I can be extra picky. Little things like spelling and persistent emailing will make me block them. Or the ones that call every night at 2am asking get a booking and say how genuine they are, when I state clearly on my profile my working times.
It baffles me how many can't read a profile for 2 mins, you'd think with the amount of money they're paying us they would want to read the profile or take your instructions properly!