From what I can tell from doing some simple Google searches and reading in this forum, and I'm new to coin collecting, Huang Ruiyong is a respected scholar and bonafide expert in his field. Therefore, one would surmise that his lists are a result of his knowledge and expertise, not just some sort of haphazard guesses or emotional feelings. Is Huang Ruiyong partial to one particular coin/medal simply because he owns many of that particular coin/medal as you seem to be suggesting? I doubt it very much....just look at how diverse his lists are....do you think he owns all of these items in plenty?
As for me, I would and will never even joke about being an expert just because I can read someone like Huang Ruiyong's list. I think such expert's lists are very serious and helpful to many collectors. For anyone who owns coins that Huang Ruiyong has ranked high, I am happy for them. Most people who own highly prized coins and medals probably worked hard or spent good money to acquire them....there's nothing wrong with honest hard work.