I think we all give advice based on our own experience with our birds. I only have conures and when someone asks for advice on how to discourage biting or cage aggression etc.. in conures, I believe each of us give ideas as to how we handled the situation with our birds. Every bird is different and each person's personality is different and I believe that has a lot to do with birdie relationships. But this forum is excellent for sharing ideas such as this. People should not be expecting expert medical advice from people on this forum, we just reply based on our experience and usually we always advise them to go to the vet. I find the forums useful for ideas for toys, behavior, etc but even in those respects, no one should expect the advice given to help their birdie relationship as (like I said before) each person and each bird is different.
I personally love the stories and pics shared on this forum.