Nice. But here's some feedback
- In the "Post in this series" he was talking about, even Duncan got confused as to which video/post was previous and which one was next. Need to make this clear in the UI.
- No paging. This is nice, but how does huge threads like that "Worlds Hardest Riddle" hold up when it loads all posts?
- "Comments on this post" had a little box if you're not logged in asking if you have a C9 account you can log in. You need to also emphasize there that you can use your Windows Live account. Yes, users would probably see that when they click "Sign In" on
the sign in page, but you need to tell users there. You might lose people signing up because they might not want to start another account.