Not only is it citing a forum poster (me), it is even misrepresenting me, because the content is monstrously inaccurate. Antonio et al. 2019 was a paper about Rome, not southern Italy. Also, that bit about C6 in South Africa, is just a visual-cacophony of nonsense.
I get the impression that such programs work like google browser, that is they give as an output what they most often encounter about a topic in the web, thus, given that we already know the fetishist obsession about southern Italians, papers that are NOT about southern Italy and southern Italians get described as about them because so they are treated on the internet.