Sounds like some people are jealous, for what reason, who knows. The majority respect your knowledge and experience, and are smart enough to learn from it. That is what counts. Keep up the good work.
I agree. As an engineer with 50 years experience, I fine that several industries that make similar products use similar methods. Everyone just gravitates to what ever works best, and keep learning at trade shows, industry groups (like SAE) etc. To say you're forcing the "Kodak Way" down ones throat is ludicrous. Nobody's forcing anyone to buy your book or use your methods.
As fotch said, "keep up the good work"! We enjoy and learn from your posts.
Moma don't take my Kodachrome away!
Oops, Kodak just did!