Mark, I think the AMC is a nonprofit?
Spamming is when you (or more typically a bot) posts or emails in hundreds to millions of places for products that are unrelated to anything. I don't think posting the AMC climbing info to a handful of climbing boards qualifies.
The Boston AMC does a great job with their climbing training program. They take utter beginners and spit out climbers who are actually ready and somewhat aware of their own safety & participation in climbing. That just cannot be done in a three-hour gym class or in one day of guiding, with every amount of due respect to the guides. As far as I know, it's on a volunteer basis by the leaders.
I'm not an organized-group person myself, and I've never had much to do with the AMC personally, but I do have a decent amount of respect for at least the novice-training aspect of it.