I would be really curious to explore such correlations. Tbh, while I was working on this, I did struggle with forming hypotheses to test, or even a suitable ma

I would be really curious to explore such correlations. Tbh, while I was working on this, I did struggle with forming hypotheses to test, or even a suitable manifold for the different items/users (e.g., I didn't know some of the users share the PGP keys). Unsupervised methods were not very satisfying in uncovering such hypotheses as well. There is also the point you raised about how to share (or what to do with) some of these correlations. For example, concerning mental illness, as much as I would love to uncover that due to my sheer curiosity, I am really concerned about what I would see.