There are plenty of people on HN who know what the parent is referring to, but simply can't comment with sentiments that belong to the class of "things you're n

There are plenty of people on HN who know what the parent is referring to, but simply can't comment with sentiments that belong to the class of "things you're not allowed to say". Dogwhistling is often less dangerous in terms of karma annihilation than actually expressing the thought.