I have noticed this trend for a long time also, and well before this article was first written. It seems to go in waves though I'll cautiously say that it seems to have gotten somewhat better in recent years. I remember a time in the mid-2010s when these kinds of stories would disappear almost instantaneously. Now some of these articles and topics get a good number of upvotes and occasionally even substantive dialogue.
That said, the comments sections on these articles do tend to devolve pretty quickly.
I'm not sure what I should expect from a community that prides itself on its rationalist roots, but discussions are often disappointing nonetheless.
However, it feels like a bad idea to me, if only because it reduces community building and curation a little. Without a mass of users taking action via flagging or reporting on community problems the end result will surely just tend towards submissions and comment threads that are simply garbage, as that is what new users would see as the social norms.
All that said, I wouldn't blame people for using it. There do seem to be a few members of this community that I'd not want to know in real life, and given their comments in some threads they'd not want to know me either ;)
Edit: I see you mentioned an extension in another thread, and this may be the same one. Still, I'll leave this here in case others want to see the links.