What I would suggest is this:
AVs are already trusted by the community to use their judgement to verify that someone is of legal age and competent to use airsoft guns. One does not need to be ASC AV'd to play at a local game, but one DOES need to be AV'd to purchase airsoft guns on this forum.
I would say that if an AV in good standing is the one who reports that someone has been doing something dangerous on the field after repeated warnings (though for something like intoxication or violence I would suggest zero tollerance) then that AV should have the ability to revoke a member's verification, ragardless of who gave it to them initially.
We dont have to "punish" the member, but we can keep them from accessing the portions of this forum that are reserved for "mature" members of the community.