I think one requirement is that a person serve on a green committee or a Homeowners Association board along the way. That's where I have met the most experts...
I used to talk with the GM of two profitable daily-fee courses in north Texas, one that sold nearly 50k rounds annually, the other that was part of a large, highly successful retirement community. He spent most of his time at the first course, not because it required more attention, but because he wasn't constantly bothered by retirees who once ran a small business or wore a suit in middle management coming into his office to tell him how to operate "their" course.
The corporate developer of the community had no appetite for owning the course after the project was 70%+ completed so it was offered to the large HOA for about $3 Million. Reportedly, the price was less than the cost of the new clubhouse that had just been completed and probably about 30% of the golf property's total cost.
The club's 200+ member MGA in conjunction with the HOA representing some 1,500 owners argued about it for a while and were unable to come to an agreement. The management company then had the next right of refusal, and it passed. The GM told me that it could have made sense financially, but having to suffer all the resident "experts" made the purchase too complicated and risky. A first time Korean golf investor ended up buying the golf course and apparently he wasn't impressed by these "experts" so he basically fought them for a few years before selling the course to another first-time Korean golf investor.
Jeff,
Two points are a trend, but just as a blind squirrel can find an acorn once, it is also possible for him to stumble onto a second one. I am not a difficult grader, but I think that a long track record of achievement better bestows the label. Of course, my needs for an "expert" are relatively few, specially when it comes to opinions relating to golf. And yes, this is all relative; there are different levels of expertise, some very narrow, some rather broad.
Ian,
Confirmation bias was rampant at the academy in the early to mid 70s when I was intimately involved in grant-driven research. I've seen two or three of my pot-smoking young professors in the social sciences become "lions" in their fields, one whose "research" became a cornerstone of draconian disparate impact policies in the previous administration. Frankly, I veered away from graduate work in the field in part because of the crap and corruption I saw regularly which passed as "scholarship".
John,
No need to apologize for your opinion. Being well-paid by competent buyers of your expertise may not be necessary, but it tends to verify or reinforce the label or claim. And yes, one could know everything there is to know about something, but if he keeps it to himself, other than for one's personal amusement, what good is it? How do we know to bestow the qualification of "expert"? I know that you have some deep-seated concerns with commerce, but isn't there a marketplace of ideas, knowledge, and expertise? I know any number of guys who are trying to find ways to make money in golf. I think that those who are well-paid to opine about gca or design and build courses can claim some level of expertise.