In exchange you get ... her. "I play a level 70 night elf druid and would prefer someone who was into roleplaying (I have a costume!) boy honestly anyone will do, as long long as you have the gold. I would also be ok with a woman too, as long as you have the gold!"
She wants to see a picture of your character with the gold ... oh yeah, and you have to be drug / disease free. Yikes folks, just ... yikes.