> So, just to be clear, someone at HN is blocking these posts, right?

Judging from the fact that they are visible and not blocked, I would say pretty clearly wrong.

They are probably getting flagged as most political controversies (regardless of the ideological bent of the story or who it seems to favor) do, because plenty of people here either (1) don't want to see that in general, or (2) don't think HN is a good place for it, even if they have no problem with it generally.