Otter's Rock

What a fun fic meme, and it's always interesting to look at why the results look the way they do, what the data actually says.
I assume "worldbuilding" as a tag only isn't in the top 10 of your tags because you often didn't tag it as such even when elements of it were there - it is a very broad tag, and you can tag much more specific things if you fic is about or contains them, even though they're still worldbuilding.