> Editor’s note: This post has been clarified to note that there are some use cases for wax paper in the oven, though not as a direct replacement for parchment paper.
The note at the end says that the post has been "clarified", but isn't the base problem that that question is asked backwards? The question they should be asking, and indeed the question they are answering is "Can I replace parchment paper with wax paper", and answer is indeed that with rare exceptions this would lead to disaster.
But the question as quoted (but not answered) is "Can I replace wax paper with parchment paper in the kitchen?" Which is a question rarely asked, but less obvious. My guess would be that in almost every case you can indeed replace wax paper with parchment paper, because to a first approximation wax paper is always a disaster in the kitchen.
Separately, I'll add that despite being quite interested in this topic, and quite passionate in my love for parchment paper and my hatred for wax paper, I found this article to be really painful to read. What terrible stylistic choices! Are there people out there who prefer this style of ADHD vomit in the articles they choose to read?