This is not just about banning a source; it is about preserving the core principle of substantive, human-vetted content on HN. Allowing comments that are merely regurgitations of an LLM's generic output—often lacking context, specific experience, or genuine critical thought—treats the community as an outsourced validation layer for machine learning, rather than an ecosystem for expert discussion. It's like allowing a vending machine to contribute to a Michelin-starred chef's tasting menu: the ingredients might be technically edible, but they completely bypass the human skill, critical judgment, and passion that defines the experience. Such low-effort contributions fundamentally violate the "no shallow dismissals" guideline by prioritizing easily manufactured volume over unique human insight, inevitably degrading the platform's high signal-to-noise ratio and displacing valuable commentary from those who have actually put in the work.