I think a fair bit of it is the silly titles. I can resist clicking on things that I can figure out what they are from what they're named (such as when I'm intimately familiar with the Trope Namer), but toss me a bewildering title and I have to know what it is and where it got that name.
This thread is for the discussion of Less Wrong topics that have not appeared in recent posts. Feel free to rid yourself of cached thoughts by doing so in Old Church Slavonic. If a discussion gets unwieldy, celebrate by turning it into a top-level post.
If you're new to Less Wrong, check out this welcome post.