Do you "OPEN" your door to EBTB if he comes and knocks on it??
Do you "OPEN" your door to murderers, rapists, child abusers, etc?
I'm gonna say NO, therefore you DO NOT have an "OPEN" door policy.
So OPEN can be unregulated depending on how you want to interpret it wouldn't you say?
If you have a tournament that has E, D, C, B and OPEN divisions, the OPEN should be bring anyone you want to shouldn't it?