Documentation is underrated. If the documentation is bad I know it will cost 3x or more to implement. Most of the time I do look at the source code, aka "the so

Documentation is underrated. If the documentation is bad I know it will cost 3x or more to implement. Most of the time I do look at the source code, aka "the source code is the documentation", but if the "source code" is 10000 modules with glue code, and there is no documentation - I will not even bother.