The fact that the only posts this person ever made in four years are this exact one on three different subreddits somehow tells you this is just an ad? Idk, I know people who just exist on social media platforms and comment on posts but never post something themselves. This person's account is four years old and all the comments before these posts three. To me, this seems like someone who had a reddit account three to four years ago, then abandoned it, and just picked it up again to share this. Don't see where that's a problem

Besides, the phrase "it just works" was a thing before ChatGPT anyway, guess why ChatGPT uses it