> tl;dr: in my experience, anxiety is unlikely to be a driver of achievement, and therefore unlikely to be a cause of productive ambition.

Agreed - the article reminds me a lot of the internet discourse around autism. That community is often dominated by successful, high functioning people with Asperger's/ASD who portray the condition as a fun, often beneficial personality quirk.

This crowds out the voices of people who are less functional, and their caregivers. Classic instance of survivorship bias.