Most importantly, the first principle of HN moderation is that we moderate less, not more, when a YC startup (or YC itself) is involved in a story. That does not mean we don't moderate at all—but we moderate significantly less. I've written about this a ton over the years: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu.... Here is a more entertaining subset: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que....
p.s. I'm in the middle of traveling somewhere but I'll try to come back to this thread soon and respond to the more specific claims in the OP. The claims in there that I personally have direct knowledge about (at least the ones I've had time to read so far) are false, and I agree with you that forthcomingness would be helpful. Edit: more at https://news.ycombinator.com/item?id=30070287.