Not sure how I feel about the author trying to use Matt's Script Archive's bugginess and popularity to make a point about vulnerabilities and vibe coding. The web was simply just a very different place back then. Even viruses were more about hackers showing off their skills than the industral malware complex we have today. Bots weren't scanning the whole web for wp-admin.php. No one was really entering credit cards on web pages. If your site got hacked, it got graffiti'd and it was embarrassing, but no one used it to hawk bitcoin.
Likening vibe apps to WWWBoard is simply ignoring the climate and times each are a part of.