Exceptionally clever! It put me in mind of Robert W. Chambers's classic collection The King In Yellow, wherein a seemingly innocuous two-act play induces madness, often suicidal, in all who read it.
This piece is especially relevant given the contemporary fascination with memetic propagation. One thesis is that ideas use people as their vectors -- and that people were "developed" specifically for that duty. Bizarre, but not entirely unthinkable. Indeed, having allowed myself to dwell on the possibility afresh, I find myself compelled to discuss it with others...
(review of free book)