In addition, if you join a meeting a couple times, chances are that you will get to know the fellows there and they will have a local, self-organized, non-public chat room as well.
They have Porn, Fantasy and Anorexia in 1 group. I think the 3 topics are very different and I don't see how an anorexic person can support a porn addict.
In any case, everything has been done, and I am of the opinion that you should launch your product and promote it and aim at your customers regardless of competition. You don't need to be unique.
Seems like you are competing with hotlines, that are free and have trained staff.
Honest question that you should answer on your page - Why is it better to pay $5 to talk to untrained peer "bros"?