Just as it was with Caldr, having early investors and stakeholders over complicates everything.
These investors might make decisions that disagrees with your vision for the future or is just plain wrong.
The downside is that having no investors is not having a funding and requires you to finding a business model be the first priority.
Reference
Fried, Jason, and David Heinemeier Hansson. Rework. 1st ed, Crown Business, 2010.
Highlights or timestamps
the process of looking for funding is time-consuming and distracting
— ^a57ae1 from Rework