This is certainly an attention grabbing headline, but wouldn't 'years off life expectancy' be a better metric to report to help people make life decisions? I am sure there are studies out their collecting that data. How am I to make a moderation decision based purely on a count a people with a specific cause of death?
The vape lung disease is so concerning because it killed people in a few days or a week. Where as cigarettes would reliably shave X years off someone's life. I can easily make a decision to never use a vape at all or never from underground source.
VISA's transaction data is not the same as Facebook's social data. Combining the two is the point of concern. We have financial regulatory laws for this reason