This makes me worry for Facebook if this is the quality of functional programmer they employ. Nearly every point of this rant shows an ignorance of even the mos

This makes me worry for Facebook if this is the quality of functional programmer they employ. Nearly every point of this rant shows an ignorance of even the most cursory parts of the subject (eta expansion, typeclasses, partial application/currying). Did OP bother to pick up a single book in the process of learning FP?