I fucking love these author commentary pages so much.
For the record, the format screw in 2161 is a big part of me loving it, as is the end note (which, hey, I like!). Also:
One last bit of trivia - to try for verisimilitude in the 0555 entry on Day 5, I typed it with my knuckles.
Christ, my knuckles would hurt by the end of that, and it also makes it really seem that much more effective.