It's not rocket science guys. She escorts, but doesn't want the whole world knowing that fact. Probably because mainstream society still doesn't look kindly on such matters, but maybe for other reasons too. So she gives enough hints on AW for the right people to be able to work out that she's available, and if you message her privately then she's open about it, but in return she asks that you don't advertise the fact from every rooftop, because for her own reasons she'd rather be doing it on the fairly-quiet.
Seems fair enough to me, and unworthy of the scorn being heaped on her.