Turn on show dead in your profile and visit the "new" link (https://news.ycombinator.com/newest). You'll see a lot of [dead] links, those are the sort GP is referencing. [flagged][dead] are killed by user action (flags).
There's lot of articles from this site on HN, including recently. But:
* It seems low-quality, at times almost like the Weekly World News. On HN, we sometimes replace even high-quality science writing with primary sources (when the paper is recent and the writing is just a summary).
* It's high-volume, which is problematic in that it incentivizes users to submit lots and lots of stuff from this one site; front page slots are the scarcest resource on HN and everything competes for it, so high-volume low-mid-quality sites tend to get downweighted.
* It's slathered with ads and bait-y gimmicks.
If there's something on this site that you think would make a good thread for HN, you can probably just find whatever it's blogspamming and submit that instead.
