I liked the comment that basically says memorability is a good measure for whether you liked the course, not necessarily whether it's a great course.
I think Pinehurst No. 2 is the poster child for this. Now, I've never played PH2 -- but I suspect that if I did, I would instantly dislike it. From all the reviews I've heard from those who have played it, sounds like it would be a parade of demanding approaches to greens that run off -- and you'd better be a real shotmaker/shot shaper with irons to cope with that. I have also heard from the same group of people that "qualities" of the course as a whole were very memorable, but individual holes were -- not.
But PH2 is undeniably a GREAT course regardless of whether I can cope with it or like it.
So there's the perfect example of a course that scores low to middling on "memorability" (as contrasted with, say, Cypress/PV/PB/Merion, etc) -- yet its greatness cannot be argued. Therefore, for me it would be a course I instantly respect but won't be enjoying as much as some others where I remember the individual experiences.
As an aside, I'm not that happy with the USGA/Pinehurst thread. As far as potential US Open sites go, PH2 is the one I'd be least interested in as a fixture on a "rota". For sure, it's a very appropriate playing test for a championship -- but I sure prefer Oakmont/PB/WFW as a US Open model. (I won't even talk about Chambers Bay or Erin Hills!)