Scaling a startup involves navigating complex technical strategies, and avoiding common pitfalls like premature optimization, multi-cloud architectures, and over-engineering solutions is essential. The reflection by an experienced technology professional outlines strategies that should typically be avoided, such as adopting the so-called "best tools" for every situation or implementing microservices without sufficient expertise, which can result in unnecessary complexity and inefficiencies. Emphasizing the importance of simplicity and leveraging existing resources, the author advises against blindly following the practices of successful companies or hyperscalers, as these often address problems not faced by smaller startups. Instead, he suggests focusing on building security from the start, maintaining a high frequency of product shipping, hiring for growth potential, utilizing high-level managed services from cloud providers, and maintaining a strong customer focus to ensure long-term success and scalability.