I think I have a decent mind (though it is getting creakier every day), but even more so than with visual" clutter I suffer a bit when there is "psychic" clutter -- in cafes and on television, meaningless chatter and/or overblown rhetoric; on golf courses, the many signs and signifiers and directional aids and clever choices that shout out, much too loudly and insistently for my tastes, "This is a golf course!" and/or "An Architect Made this -- isn't it great!". Then I can get grumpy, and I want to say in reply: "Do you genuinely want to serve golfers and the game? Then get the hell out of the way!"
That's why I think a flowing, elegant routing is so important. Almost nothing for me adds as much to the "psychic" clutter as a convoluted routing that has me doubling back from a green to the next tee, or wandering off at some strange angle and over bridges in search of the next one. With each awkward routing sequence, I can hear/feel the architect "thinking" -- "Oh, this hole over here is great, and though the walk is a pain once I get them to that elevated tee they'll forget all about it, and then I can get them over there by just going over couple of bridges -- we need a Par 3 now". And frankly, I don't want to hear the architect thinking; I prefer my own thoughts, and even of those I often get tired.
Peter