To be fair this predates LLMs, SEO crowd was doing this even before to try to get into Google Answers, and before that to have a favorable-looking summary under their blue link.
The entire industry is full of tricks that may or may not work, seems closer to magic rituals than anything else. It's genuinely pretty difficult to analyze how well SEO tricks perform, so there's a lot of "wow, this site is doing well, let's try to copy the success by emulating its patterns randomly" going around.
The entire industry is full of tricks that may or may not work, seems closer to magic rituals than anything else. It's genuinely pretty difficult to analyze how well SEO tricks perform, so there's a lot of "wow, this site is doing well, let's try to copy the success by emulating its patterns randomly" going around.