I've never been to an AA (or any of its spin-off groups) meeting, but I've seen enough of them on TV to know that's how a speaker begins. And because I am a person of much cheek, that's what I think of whenever someone introduces him/herself. I'm sure there is some way in which that is completely inappropriate, but I'm not bothered.
Case point: The youth minister at church got up a few Sundays ago and said, "Hi, my name is Bryan and I'm the youth minister." And I had to hold myself back from replying, "Hi, Bryan!"
Although I did write it on my notepad. Because that's the kind of brain that I carry around with me. It's fun in here.