Are you suggesting that people should not express dislike of YC-funded companies here? I don't think we really want to encourage the creation of taboos like than here.
No, I was suggesting the presence of links to Scribd may not be intended solely a convenience to the current HN audience. I do think there is some self-suppression occurring regarding YC companies, though. This is a good thing if it encourages more thought as to phrasing, and a bad thing if it creates a taboo.