... could we safely say that he has not violated our COE in any way, whatsoever... and, if yes, should the club accept his membership application just in case he wishes to open the umbrella we allowed him to ram up our arse?

Of course the above question is not directed to you, solely, Jim.

...and, if anyone should wish to continue (re: our COE), are be bold enough to rewrite our COE to help deter any member from introducing what he has introduced to our hobby?