I also made a site (http://www.amatranscripts.com) that transcribes popular AMAs. Elon Musk's is here: http://amatranscripts.com/ama/elon_musk_2015-01-05.html
Is there any logic as to what order the questions and replies are displayed on the page? It doesn't seem to be either of reddit's 'top' or 'best' sorting. Perhaps whatever order they landed in within the JSON?
On the Musk transcript I found this formatting confusing: "Have you played Kerbal Space Program?
What do you think SpaceX uses for testing software?"
I can't access Reddit to see what the original comment was.
Q: In order to use the full MCT design (100 passengers), will BFR be one core or 3 cores?
EM: At first, I was thinking we would just scale up Falcon Heavy, but it looks like it probably makes more sense just to have a single monster boost stage.
Q: Nice to see you are doing things the Kerbal way.
EM: Kerbal is awesome!
The second one:
Q: "Hi Elon! Huge fan of yours. Have you heard of/played Kerbal Space Program? Also do you see SpaceX working with Squad (the people behind KSP) to integrate SpaceX parts into KSP?"
Reply (not from EM): What do you think SpaceX uses for testing software?
EM to Reply: Kerbal Space Program!
Short version - Elon Musk likes and plays Kerbal Space Program.