I have stated many times that the idea that you need to play a course 50-100 times to declare it great is daft. Hardly any courses get that sort of consideration. I love great golf courses, but there are only maybe half a dozen courses I've played that much [and some of them were not great]. You would only be allowed to rate the courses you love so much you've played them 100 times, and that wouldn't yield many surprising results. Of course, a certain class of people do love their status quo.
Most people start by believing what they've been told. That's why there is such a thing as advertising, and such a thing as social media hype, even though there is absolutely no reason to believe that what people are being paid to tell you is true. Indeed, if you thought about it at all, the fact that you have to pay them to say it casts a significant shadow on the subject.
Then, especially, many people's default is to believe what "experts" tell them, which is why rankings are such a big deal [and why people care about my silly Doak Scale scores].
As Ian says, and as someone mentioned the other day, context is important to one's opinion. Aronimink, the day after Merion and Pine Valley, did not make much of an impression; it would have done better if the order had been backwards. The people who don't like Seminole the first time [or who think some particular links course is "too easy"] probably saw it on a calm day. The people who didn't like Barnbougle or Cape Wickham probably saw them on a very windy day which caused them to lose a few balls. You didn't see them at their best.
But, to drag this back to how it affects rankings, are we supposed to always rate a golf course based on when it's at its best? What if it's only at its best a few days per year, or what if it's on the decline and may never get back to its best?
Some courses go out of their way not to let panelists visit when the course is not at peak condition, or if they can't get together a group of caddies to sing to the player on the first tee.
But, that's not really a new phenomenon: you will never see a photo of Augusta National without flowers in bloom, because they don't allow photography at off-peak times.