I feel your pain. I am not close to being qualified myself.
I have however been spending a lot of time investing in a couple of younger players than myself who cannot afford coaching. I spend more time and effort than some coaches who ask money would ever do. Thankfully I have seen improvement in their game and its very self fulfilling knowing you can help someone. The problem comes that people imply that you teach them wrong techniques just to bring you down....or due to being jealous for taking a potential student away. I have seen some very good, qualified coaches with worse technique than myself. There isn't a perfect coach, and some are better teaching this and other that. Sometimes I just want to get the papers so people will get off my back. Or maybe this feeling of judgement is self inflicted :P