Simple note: For our visitor's ease... we can start new topics and they might be interested in joining in on the discussion... in case they're not into "AA selfish" stuff.
Meetings in public places? Well. I drank and I fought and made an ass out of myself in public places... I guess it wouldn't hurt my reputation too bad -- if someone found out I was going to an AA meeting in a public place.
I've been to a lot of meetings and even helped out in started a few -- in restaurants. I especially like the cute little chicks pouring my coffee, winking at me, and calling me "honey"!

(Something that other meetings lack).
A church is a public place. I've walked into a few church meetings looking for the AA meeting held at the same church. Didn't hurt none. They sure are big recruiters though!
Libraries. Same thing. They whisper to each other and say things like "THE ALCOHOLICS AND DRUNKS ARE MEETING IN THAT ROOM OVER THERE!"
I really enjoy breakfast meetings. Regardless if they are in a restaurant or a rented club. Especially, if it's a sunday morning breakfast meeting with a speaker after breakfast.
I guess it's kind of like praying in public. A temporary sponsor that I had once -- said I had to get on my knees in front of Jerry's Deli in Studio City California and say my 3rd Step prayer there. It was supposed to smash my Ego... and, it did. He also said it was about me showing myself that I really would be willing to go to any lengths -- to do whatever I had to do -- to stay sober. He said he did it that way and was just passing it on to me. He was a great guy. I wonder where he is now days. I hope he's doing well. Lost touch with him.
I know of another meeting that used to meet in a bar, and another meeting that met above the bar, and another meeting that was next door to the liquor store. When the person with the key didn't show up we met in the alley behind the liquor store. Those were all really good meetings also.
I realize that we've got an anonymity thing... and that's good... for AA. But, I also feel like I shouldn't be ashamed or embarrased to be associated with the sober drunks.... or with God, or with AA. It wouldn't be good for me to feel like I was trying on purpose to hide something about me -- and of course, common sense says it probably is a good idea to not reveal everything about me everywhere.
That's my take on it.
Dallas