It is directed at anyone with a purported knowledge of AVRT who says that drinking is for reasons other than obtaining intoxicated pleasure, and that he or she was unaware, after months or years, of the immoral nature of the self-indulgent, adolescent behavior therein. The post you refer me to is non responsive to the question.
In other words, later knowledge of AVRT don't get you an absolution for the behavior that preceded it.