I like how nearly every comment here is about the AI itself instead of POST data injection the blog post warns about. I can only imagine GitHub Copilot is writing them.
I've seen moments in the last week where no fewer than three items on the frontpage were dealing in Copilot outrage. URLSearchParams, on the other hand, is brand new. (I wouldn't even be surprised if this were the first time the topic has made it to the frontpage, ever—if it's even been submitted for discussion at all; searches aren't disconfirming this, but it's hard to be conclusive by just filtering on submission titles.)
As for the (obnoxiously stated) claim "Umm... the article is also about Copilot", you're off by about a mile (or maybe off by an amount that we'd expect from a machine that feels like it's doing pattern matching and faking deep, human-level understandig). Copilot's relationship to the article is incidental; it uses Copilot snippets as examples. The article is about URLSearchParams and data encoding.
I blog about things that catch my interest, and the coding error in Copilot caught my interest. Usually when I do a blog post about the 'right' way to do something, it's triggered by seeing it done 'wrong' somewhere. Usually I can't point to whoever did it wrong, because it's unfair, and as a result I get a lot of replies to the post like "duhhh everyone knows this already". But in this case it's AI creating the error, so it feels fine to point to the source of the error.
Rather than jumping on a hot topic to farm hits to my blog, I'm blogging about something that caught my interest, and it caught my interest because it's a hot topic.
I'm completely fine with chasing an incidental topic, my comment was in reaction to the parent's comment about people going offtopic, while, to me, it's pretty logical that the topic is going to be the news while it's still hot.
The Copilot thing is much more intriguing IMO. It is a large and fairly high-profile product launch of a developer tool, and the headline examples given contain a variety of subtle bugs – at least four that are listed in this comment thread alone. That's likely to stimulate some interesting discussion!