WTD Episode 8: Stack Overflow's Documentation Failure and Open Source Challenges

In this episode, we're joined by Beth Aitman to talk about what
happened with the Stack Overflow Documentation Beta. What did Stack
Overflow try to do with documentation, and why did they abandon the
effort? Why did their effort to crowdsource docs fail but succeed
so well with forums and niche content? Additionally, we discuss the
difficulties of creating good documentation with open source
projects. A recent survey found that incomplete or outdated
documentation is the number one issue with open source projects.
Why? What makes it so difficult to create documentation on an open
source project?