appreciate your desire for a sharply defined edge of what is acceptable and unacceptable. Wish written rules could be that exact. I believe written rules can never be that exact. Therefore, we will always be faced with making ethical decisions on & off the playing field that are based on the grey areas.
a quiet conversation from the leadership & a voluntary suspension by the owner.
If one's group is dependent on parsing the rules to enforce the Corinthian Spirt, then the group is going to be constantly engaged in bickering about the 'rules'.
there are classes that have barely any rules and somehow magically produce fair sailing - no amount of rule writing & amendments can create a Corinthian ethos in a class. It's about the tone the class leadership sets.