@Lady Probably a lot of its training data is in the first person, so I don't think I would expect that, gramatically, it was missing usage-patterns in its training data for first person writing..?

... Ah, but "I", "my", "me" inherently rely on context for their qualities in a way that "the doctor walked in" embeds/reaffirms directly in the text stream.
And so it'd be more likely to lose that context in first-person writing than in third-person. Is probably what you were thinking. Ah.

.. yeah I buy that.