We go out of our way
not to kill stories and comments that are critical of YC or YC-funded startups. When such posts break the HN guidelines, we may penalize them, but always less than we would if the story were about something else. That's a pretty big deal around here—it's literally the first rule of HN moderation.
Beyond that, we'd need to know what post you're talking about.
If you'd like to provide a link, we can look into it.
