trying to extract lessons from the design of PHP is like trying to win the lottery by wearing a trucker hat because you saw some dude in a trucker hat win the lottery. there's nothing there! you might as well be reading tea leaves. which is what I said in the rant, but you didn't get the point. you might as well be posting a picture of some tea leaves and then having a discussion about that.
yes a good enough conversationalist can extract something meaningful from anything, and that's the real challenge I was after when I wrote the rant, but if your goal is to write something interesting about what you saw on Hacker News, let me tell you, Hacker News does not make it easy for you by talking about PHP.
Despite being a technically uninteresting language, it still became incredibly popular. Why?
That's why it's on Hacker News.
Obviously people in this community feel that there is something interesting there worth discussing. If you disagree, perhaps that implies that this community isn't a good fit for you.
There are lots of people that disagree in 'challenging ways', but if everyone here saw everything the same way, there would be no discussion at all.