Development Hell: Part of the reason minor characters are so fleshed out is that the story is the result of years of failed drafts. For example Panacea and Glory Girl were originally planned to be the protagonists and already had a story arc plotted out.
Fan Nickname: Including some interesting cross-contamination between the story and the comments.
In the same vein as "Scion", the commenters have dubbed the "Thinker" entity "Eden" and the third entity "Abaddon." "Eden" at least has been adopted by the creator via the character tags.
Echidna's codename was proposed on the comments section way before an In-Universe character came up with it.
The Simurgh's nickname of "the Smurf" originated from a somewhat confused character In-Universe who could not remember the official name. It immediately got adopted by the posters in the comments.
The fans have begun using capslock when writing BEHEMOTH's name.
The Slaughterhouse Nine clone army that Bonesaw assembles is collectively referred to as the "Slaughterhouse Nine-Thousand," or "S9K" for short.
endgame: Out of curiosity, wildbow, can Gray Boy deactivate the time loops around people he has frozen? Or are they just stuck there forever? wildbow:Yes.
What Could Have Been: Wildbow has said that Panacea and Glory Girl were the original protagonists of the story when he was first developing it, under the original title of Guts and Glory. Both the Travelers and Faultline's Crew were also the protagonists of their own stories before they were folded into Worm as well.
Writing by the Seat of Your Pants: Wildbow makes a point of this as one way of making the writing process more interesting for himself. Virtually every chapter is written in the day or two immediately before publishing, often finishing shortly before the midnight deadline, and he has set himself a minimum-length of 6000 words. He has missed an update only twice — both by mere minutes, and both times due to technical issues.