Her writing style, grammar, sentence structure, and punctuation were those of a highly literate, educated person.
That seems unlikely for a one living in an old car, but possible, since her DUmp heyday was during the darkest days of the 0conomy.
You'd think that an intelligent mole would try to sound more like a homeless wino.
Of course the most impeccable writer in DUmp history, TiT, claimed to have never spent a day in school and to drink a quart of gin a day.