This thread is going widely off topic. Copyright is a tricky issue. A teacher's lessons plans, lectures, handouts, tests, etc are copyrighted. The knowledge is not. I am not stealing my Cal teacher's intellectual property by teaching others about derivatives. I don't know the exact history of the Womachs with the other trainers.
Even reading Barbara's article, well written as it is, made it sound like the Womachs took information they learned and marketed it better. Granted, the early days of birdtricks marketing was pretty awful, but they've improved since then. I still don't understand the hate. Don't like them, then don't buy from them. I haven't actually purchased any of their services, I just watch their vids and read their blogs. Just like I do with this forum and all information out there, I take what I think is good and ditch the rest.