I happen personally to agree with you about shallow dismissals of APL and the other array languages and have felt rather strongly about it at times as well, so I completely get where you're coming from. But that makes it painful for someone like me to read nasty posts flaming people for getting it wrong (or what you and I would call wrong). All that achieves is to alienate not only the person you're talking to but also any neutral readers who don't know much about the subject—and that is the vast majority of readers. It not only doesn't help your (our) position, it gives people a new reason to have negative associations with these little-understood languages, which are much too beautiful and powerful to deserve that.
You clearly know a lot about this topic and you're more than welcome to share what you know on HN. One function of this site is to be an educational hub for non-mainstream knowledge about computing (and other topics as well, but especially computing). However, we need you to do so within the site guidelines (https://news.ycombinator.com/newsguidelines.html) which includes being respectful and kind to people who know less than you.
It's great that you edited out the worst personal attack and the fact that you did that makes it clear that you have good intentions—which I appreciate. But it isn't enough to leave posts that are full of putdowns. We really can't bend these rules, nor is it in your interest for us to bend them because, as I said, all they do is make your minority position even more of a minority position, and that hurts you yourself as well as the rest of us who love these languages.
I definitely hope you'll keep posting and sharing interesting things about APL, but if you'd please review https://news.ycombinator.com/newsguidelines.html and take the intended spirit of the site more to heart, we'd be grateful.