Agreed. I think it's something to do with the definitive seeming nature of lists, coupled with the need to keep them succinct that's appealing to many. (That being said, I'm of the generation that was excited to watch the top 20 countdown on MTV in the eighties.) We too would like to see more content on the pages, in part to add to how much readers can get from a topic; additionally, it would be great to get the density up for SEO.
The challenge for us is to find a way to collect this content, while appreciating the fact that many users don't want to do much more than click a single button. (I still appreciate what the folks at “Hot or Not” did by reducing the entire site to a one click navigation system.)
As such, our first approach was to reduce the barriers to entry, by cutting things out. In fact, our first iterations of the site had relatively exhaustive voting and content options. We found that most people avoided voting altogether as a result, or skipped adding the content. As such, we kept removing things and refining them until we found that people felt it was easy to click on something. (It seems that once the user now partakes in even a single list, they find that it relatively easy and as such start to get involved in others.)
We're now looking at how to include extended content, and our approach is to center this on the individual. They can list their thoughts on selections, and then maintain an area for themselves alone. As such, they can make relatively personal explanations for their selections, while still being able to include the community in their list. (We're hoping to roll this out early next week.)
We're looking at retooling our points system in tandem with this roll-out. In our minds, it would seem appropriate to reward those who add more content and thoughtful reviews of things. In the meanwhile, this leads us to eventually adding local components that would allow for more in-depth reviews of restaurants and the like.
So much to do!