How does shadow banning on HN work?
I submitted a marginally contentious article recently, and was surprised to see that it is only visible under New when I am logged in. When I look for it without being logged in, it's not there. It's not even flagged.
Like detaro said it looks like it's the domain that got banned.
"Overall, we rate GlobalResearch a Tin Foil Hat Conspiracy and Strong Pseudoscience website based on the promotion of unproven information such as the dangers of Vaccines and 9-11 as a false flag operation." https://mediabiasfactcheck.com/global-research/
It seems the domain your submission is from has been banned years ago, so all submissions from it get autokilled.