I have some insight into AA because I used to be heavily involved in Network Marketing, (which quite obviously derives many of it's methods from AA - even many of the sayings are the same, eg. "It won't work unless you work it"). I lost a lot of money doing that, but you know, that isn't what annoys me the most. In fact, I don't even care about the money when it comes right down to it, I can always make more.
What really chaps my arse is the time I wasted. These arseholes were happy to have me going to meeting after meeting, sapping away my life just so they could line their pockets. I'd rather have a cat burglar rob me in the dead of night - then it's
just about money.
It doesn't matter what I would do with that time otherwise, it has to be way more beneficial than sitting in their stupid meetings. Even if I spent that time watching
Golden Girls reruns, at least I am doing something I choose, that makes me happy. That's what these bastards take from you - literally your life.
Also, in order to make you believe their crap, they have to compromise your ability to think critically in the first place, which effectively leaves you vulnerable to almost
any bullshit. If there's truly any such thing as brainwashing - this is it. The only problem with it is, a person who is not thinking straight will believe just about anything. This is probably why cults have to cut you off from the outside world - to eliminate the competition.
Ever heard that saying, "If you don't stand for something you'll fall for anything"? Well I'd say it's a case of, "If you'll fall for something, you'll fall for anything".
This is the harm that these scumbags are doing. Stripping their victims of their ability to think rationally and thus protect themselves from the harsher realities of life. Your brain gets so full of simplistic slogans and internally conflicting platitudes you barely know which way is up.

You reject your friends and family if they don't agree, you hurt people emotionally, and if you're lucky enough to get out, and smart enough to choke down your own pride, you'll get the opportunity to apologise to them on your knees for being so stupid. If you're real lucky, a significant percentage of them will forgive you - but never all of them.
Rate a little better on the harmful scale now?