Hi Jim,
although I totally agree with people can select whatever they want and like I don't agree with we all hear differently.
There is a big difference between hearing and listening. Listening is hearing PLUS concentration or focus.
There is al earning curve with all our senses and I suspect this can change with various factors, like experience, age, health to name a few possible reasons.
When I started in audio I was fortunate that I did have some mentors to teach me listening skills. I personally do not believe that everyone has the same skills for sure but this is real life. Not everyone can drive a golf ball 300 yards, or high jump 7 feet, or any other skill that requires some innate ability PLUS practice. If you want to be a better listener you need to practice and perhaps get some help.
It is one reason that systems vary so much, setting up a system without good listening skills, is not possible. Just because someone reads or book or watches someone else do it does not make a math problem that is easily solved.
I also don't really care what others think UNLESS I have listened with them and we can communicate.
The distortion and minimalization of the language to the point that most audio phrases don't really communicate a clear message is not helping this.
I do believe that most people can tell when they hear something live and if they have no experience they should try to get some as it certainly does help. Its impossible to be a wine taster if you never drink. I think there is much to much ego and protectionism of opinion rather than the real discussion to get improved outcomes and more enjoyment.