I believe this is happening with a provider I saw within the last year or so. Pics are only one piece of evidence; the reviews indicate vastly different experiences. She/they advertise here as well, and the latest ad seems to leave a lot of room to change the experience with the client and hobbyist on a whim (or depending on which one of them you end up seeing).  

Does this happen often?

Sounds like a form of B&S, if what you suspect is in fact true.  If you have evidence as you say, do everyone a favor, and file a problem report.