> I didn't understand how this connects to the first paragraph at first, but I think you're saying this playthrough is an analog to someone making such documentation, thus saving DF from such a fate?

(Not OP) Possibly, but one of the repeated themes in Boatmurdered is a number of fortress defenses (some with considerable collateral damage) attached to a variety of scattered and unmarked levers.

Does pulling this lever lower the drawbridge, irrigate the fields, or douse the world in cleansing magma? Only one way to tell!