Can this map be better understood as groupings of users? It seems that a lot of the categories that are polyphyletic so to speak - programming grouped with scie

Can this map be better understood as groupings of users? It seems that a lot of the categories that are polyphyletic so to speak - programming grouped with science, Italy and Spain between China and Japan - make sense if you just think of them as overlapping groups of users. More specifically, the groupings would be user accounts (this distinction is important for understanding Porn Island).