Kevin Hankens, Acquia Engineer, discovered Drupal 5 when he was looking to build a highly personalized eCommerce visitor experience for his then-employer's website. I was fascinated to hear an origin story of the very beginnings of the sorts of digital experiences everyone is talking about today* (see below), 6 years later.
Read the full post at the Acquia Developer Center: https://dev.acquia.com/podcast/94-drupal-digital-experiences-and-best-module-ever-meet-kevin-hankens