The author of the article experienced issues with Stripe Tax, which caused hundreds of recurring subscription invoices to be disabled due to missing location inputs, resulting in significant financial losses. The author had enabled Stripe Tax to charge provincial sales tax for Canadian customers, but the integration failed to work correctly, and Stripe did not notify them of the issue. The author had to spend time and effort to resolve the issue and communicate with affected customers. The incident highlights the importance of careful integration and testing of payment systems.