It means that people who have been in the hobby a long time don't care for the hobby to change all that much. People who have been in the hobby over ten years are probably over the age of thirty and had tanks set up a long time and don't like the changes that have been made in the hobby recently.
OR it could mean that many of these people starting breeding clowns years ago. It could mean that they made many of the simple beginner mistakes that the new breeders are making. It could mean that they were part of the process to improve husbandry, feeding, and other best practices that new breeders are ignoring. It could mean that they feel dismayed that all of their work is being ignored so someone can make a fast buck.
And I don't call it "hating". I call it wisdom and experience. I don't "hate" any designer clown breeder, but I'll call a bad quality clown when I see one - REGARDLESS of its color or pattern.
You are stating your opinion, however the science and genetics behind the animal says just the opposite.
The entire reason an unusual pattern exists is BECAUSE of a genetic flaw.
There are genetics, and there are environmental factors. Give me a full spawn of clowns and I can raise 50% with top quality water and husbandry and high-end food, and end up with a very low rate of abnormalities and brilliant color, high contrast clean pattern, active fish. Meanwhile I will take the other half, raise them in less than optimal conditions, and achieve 95% or more poor quality fish with high abnormalities, poor color, etc.
People who don't breed clowns don't understand what a fine line there is between great quality and ok or poor quality. Much of the development of marine fish happens at the larval stage when the tiniest change in environment can have a dramatic impact. Professional breeders track their breeding efforts to the nth degree... tracking their survival rates, grading their fish, tracking their quality over time, etc. When you spend years and thousands of dollars to improve your breeding program by the narrowest margin, trust me when I say that you can look at other fish and tell poor quality from excellent quality at a glance... and it has almost NOTHING to do with genetics.
You want to know why many of the pro breeders use circular larval tanks with circular water pattern and center lighting? It was because they were finding that when they used rectangular tanks the larval fish were impacting the sides and causing a high rate of pug nose and broken jaw. So they invested a ton of money to create systems to keep larval fish away from the sides as much as possible. They cull pug noses and broken jaws as environmental abnormalities NOT GENETICS. Yet I see garage breeders selling pug nose fish all the time... because they don't know better and/or they don't care because to them it is a quick $200 they can get from an unsuspecting hobbyist.