[salmonellaeater]

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).

[penneyd]

From the info section - "Two dots within the same cluster are usually close to each other if multiple users frequently leave comments on both subreddits."