I think he is absolutely right in that the question is ambiguous. The linked questions are phrased exactly the same and don't mention passive income. It is not

I think he is absolutely right in that the question is ambiguous. The linked questions are phrased exactly the same and don't mention passive income. It is not because everybody, myself included, interpreted that passive income is meant without it being mentioned that the question is not ambiguous. It is just our interpretation due to what we expect to see on this site.