it means "hey, I want to make some cash, and certain terms like open-minded are known to increase the likelihood of booking a client".
it always means that.. it CAN mean she is open to more activity than "normal" Providers. but don't expect that.. at the least "open-minded" gives us an opening to ask freely just what a Provider will do.
You may go over and are able to go right through the front door. If you knock on the back door politely, she may let you in, or she may ask you to go around to the front door. In either case, she will probaby provide medical booties so you don't track in any mud. If you are afraid you might not have the same traction wearing covers on your shoes, you may need to knock on some else's door.