Shameful update.
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Cheated myself into the 98th file, spoilers follow.
Genuinely unsure how I could have figured that out, and completely at a loss for how @’s trick in the poem worked. So names do matter? I guess? And since we just worked his out, we’re gonna die… right? But the rest of the poem doesn’t contain the “dead bodies strewn about” that @ mentions in 21-CH-3, so… what the hell. The poem is addressed to a “you” — the future reader, i.e. us? And the number at the end… what? If it’s a code, I don’t get it, and I don’t think it can be a password simply for lack to places to put it.
In conclusion: I am once again feeling dumb for not getting the ending and now not even feeling proud of myself for getting there. Hum.
Edit: Ah, I guess the mystery of the number and the poem is solved. Who would’ve thunk @ liked that stuff.