Regarding fraudsters on this (or any other) page, try to do some sleuthing and verify that they are who they say they are before sending any money for something. Not sure if asking HFC trivia would help in all cases, but regardless, be very careful of any suspicious dialog or insist that they send a picture of them with the guitar or a pic with something current with the actual guitar. That's not an unreasonable request.
Fraudsters are getting more and more sophisticated, and A.I. has only made their scamming easier.