Speculative fraud hypothesis

[dexdex]

Isn't the idea that you are self-copying something you don't understand? The words have an overwhelming probability of 'mutating' by simple errors; the scribe knows the glyphs so it's most probable to happen to some potentially hard to read glyphs. Or, they intentionally added a flourish to a word out of boredom. Now, the word becomes a copy candidate but with much lower probability since it only has one example, preserving the zipfian distribution of words.