I think AIs will be good at deciphering things like this. They can wear a text like this as a pair of glasses and wander a virtual Earth, read other texts, time travel, and wait millions of man-years for a single affordance.

The same work an amateur anthropologist does, but with more patience and better scrapbooking skills, basically.

Although by the time AIs exist that can do this, amateur anthropologists will have much better digital tools as well.