The science is somewhat related, educational, and interesting indeed, but the main question's answer is more about a prototype than the science from how I understood it. And the topic's "worthiness" has nothing to do with dates or glowing like you're implying, it's simply that it seems rather obscure and out of place for a main forum post, especially in its original fan fiction location.
Had the parts not looked like they were glowing or had he known about total internal reflection, this topic would not have existed. The 'science' is what prompted him to think "Are they early versions?", he just didn't know it. As Fan Fic and Theme Discussion are right on top of each other, posting this in the wrong forum is completely possible. The content of the post is what matters anyway, not the location. This is certainly not the first theory that has been posted, so I don't understand why certain ones are treating this guy differently simply based on his lack of knowledge or a misplaced topic.
I don't know a lot about LEGO compared to members here, I didn't know about "first glow in the dark LEGO" which is a "incredibly common piece of LEGO trivia"... I didn't even know LEGO produced glow-in-the-dark pieces altogether. Regardless, I don't think the "kids these days" (or in my case "Adults these days") comment is appropriate if it's based on how much you know about LEGO.