Wow, this is one of those interesting subjects. For what it is worth I am giving my opinion on it.
I have never seen anyone do this in my league and one time when it was due to injury that bowler was strictly informed of the rules on this. I think the reason it came up after 8 weeks in your case was probably more of a situation where someone complained about it than a personal vendetta by the Secretary. I clearly understand the rule and think it is an excellent rule.
I understand Erinís position because a lot of bowlers are looking for an angle. They try to push and find loopholes in the Rules for their advantage. I know this is not the case for you but sometimes people get misconceptions and I think we have all had to deal
with that at one time or another.
So at least now you know and you can just pick a hand and move on. I would not take it personal if I were you. It appears as though after 8 weeks someone finally brought it up to the League officers and they acted appropriately. As far as the comment that you are being watched, although I do not know why a lot of people who do this are in trouble but I would assume somehow they are using it to abuse the system.
Summer 2012-League Average-179, HG-224, HS-595
Fall 2012-2013-League Average-181, HG-237, HS-624
Summer 2013-League Average-189, HG-245, HS-653
Fall 2013-14-League Average-178, HG-228, HS-631