Sure but you started by saying these things weren't flagged and they probably were. Lots of things are flagged, it doesn't take a lot of flags to throw something off the front page. I'm sure people flag for 'ideological' reasons but I think the chances are pretty good it largely evens out.

PG's most recent essay got banished off the FP (correctly, if you ask me) within a couple of hours, with zillions of upvotes and a thread made of pure HN hell. You can actually interpret that outcome N different ways to support a preferred narrative. One might be that HN is just a place for oblivious techbros. Another one might be that HN's immune system worked and deep-sixed the thing.