Often wondered the utility of this mechanism, but this feels like it might be a candidate.
The asker doesn't know what he doesn't know:
This isn't a knock on the user, just recognition that the question requires a high degree of expertise to ask properly. You can't ask if you don't know, and you how can you learn if you can't ask
Despite comments to the contrary, this is most certainly a topic for EEs
It can be broken up into chunks. PCB printing and assembly, final contract assembly, harness making, regulatory issues, design for programming and testing, ...