I went to a couple meetings a few years ago and although in theory I agree with many of their principles, and even practice some, it wasn't for me. It may have been the particular group I was part of, but I just didn't identify with the stories shared. Obviously I have an unhealthy relationship with food (I was over 300lbs!) but I guess the specific things being said didn't apply to me.
I also felt a lot of a victim-type mentality at the groups I personally attended - and again, it may have just been the individual group - but it didn't resonate with me.
I know OA has helped a lof of folks though and it can't hurt to give one or two meetings a try to see if it is something that you feel can help you.
I started my own blog to explore my issues. I am not anonymous but you could remain anonymous should you decide to explore that route. It is free therapy as far as I am concerned LOL
Take care and good luck on your journey