hi
I collaborate with a FOSS project doing documentation and I know what it takes not only to do it right but also to maintain it, but on the other hand good docs have a dramatic impact in any software project in terms of user base and more importantly, software quality and users' results. With good docs the development loop gets faster and thicker.
Agisoft photoscan is a great piece of software and I admire what you do guys but documentation is not only poor and severely lacking, there are also undocumented features for instance mesh refinement.
Maybe you don't want the consequences of good docs anyway.