Is it better to scale fast and break things, or play it safe and grow steadily?

My strategy has been go-fast, fix quickly and prepare for the risks. In shorts, it's a "Fail-Fast" model. Market always run faster than we do, so execute everything in "fast" mode.

Go fast at first, and slower later. At first, meaning until you find product-market fit.

Depends on your market and funding. "Move fast, break things" works for some, but steady growth's safer for bootstrappers. Know your risk tolerance.