Earlier quoted context omitted.
it's more like short term gain vs long term gain. experienced engineers can design an architecture that will allow you to scale cheaper and faster in the future, at the high initial cost. it will be cheaper to maintain, better for security. depends at what point your business is at the moment of hiring and what you plan to do with the product. do you need volume or quality (both variants are right)?
If your business is going to cease to exist in 4 months, who cares about scalability? Pay the interest when it comes due and when you can afford it. If someone is serious about building a company they will be okay with that.
startups are generally moreso a business endeavor than an engineering one, although the engineering must correctly support the business
the engineering begins to take the driver’s seat as the tech debt and cost of scaling catch up to successful companies and begin to create excess drag
but for many years, such companies can typically still afford to throw away money to solve business problems, including these problems of scale