This post is currently on the front page but immediately after it was first posted and hit the front page, it was downranked to the second page.
Not sure why you're immediately accusing HN staff, anyone past a certain level of karma can flag a topic and cause it to drop significantly.
There have been many posts and explanations of how the moderators will modify the order of the first page. Sometimes to consolidate duplicates. But often just of their own whims. While this site has an excellent content posted usually, it is not a fully transparent voting system.
Of course but "how would you know if they did it?"
But explicitly not on the topic of YC and YC related companies.
That said this kind of veiled personal attack is really not nice.