To be clear nothing in the post makes me think they actually did what they are claiming, from doing non-specific 'fixes' to never explicitly saying what the project is other that that it is 'major' and 'used by many' to the explicit '{next product iteration} is gonna be so incredible you guys' tone of the post, it's just the thought of random LLM enthusiasts deciding en masse to play programmer on existing oss projects that makes my hairs stand on end.