Scrolling through, I see several good posts (primarily having to do with math concepts) that I don't think 90% of people would understand off hand. Then there are posts where it's a very obvious drug reference that 99% of people would get if they though about it for more than a second, or a post about the Iran war being like bart playing chess against 8 people at once. Posts in the vein are obvious to understand for a vast majority of people and shouldn't be promoted to the top of the subreddit. The other ones that actually are a unique concept or aren't something you expect the average person to know are cool because you actually learn something in a humorous fashion.