The HA part looks pretty cool!

I'm not a big fan of the design though. I find the visual hierarchy of the layout a bit confusing:

- There isn't enough whitespace around the content, making it feel cramped

- Scrolling isn't a bad thing. I usually find a top-down flow (from title to content) easier to navigate than reading down from the title to the byline and date, then back up for the content

- Comments and comment form below the content makes sense since people usually like to read and post comments after they've read the blog post. Having them at the top forces users to scroll up again.