I always found it illogical that ANY person can walk into a meeting off the street, raise their hand and comment -- it doesn't matter if it's a woman in pants, a heavy smoker, etc....their lifestyle does not need to be in keeping with the rules, but in order to preach door-to-door you need to qualify by proving that you're living your life according to Bible standards.
Fast forward to after you're baptized....if you violate Bible standards, you're suddenly no longer "qualified" to share spiritual comments with others at the meetings, yet 20 minutes after the meeting ends you're suddenly qualified enough to go out and share spiritual comments with your neighbors....