This is an important discrepancy between the words "working" and "producing". And even then, reading HN can be productive in your clauses. So it ends up just be

This is an important discrepancy between the words "working" and "producing". And even then, reading HN can be productive in your clauses. So it ends up just being semantics. However, in this article the author seemingly seems to want to say "Shipping Code", which is clearly just a small subset of work/being productive.