Well Although your wrong ..i agree kinda
Jake, Jake Jake.......
First off I'd like to say that I actually agree with about the master thing...It gets tossed around the martial arts world like a red headed step child and most folks who go by it don't deserve the title and often a total sham.
However...
Joe is last person in the world who would demand or expect anyone to call him master. I am using the term as a matter of respect for him which you don't appear to have. To me he is sifu...lots of people just call him Joe. A humbler person I have yet to meet.
Unless 7star mantis suddenly became A "WUSHU" style then your wrong. Thats it plain and simple.
I don't see why it's so hard for you to admit you made a mistake.
I too am trying to help this wayward poster find a teacher and you provided them with misinformation based on your experience.