It is hard, and things are messy in some areas. But in my experience it’s less hard than writing a lot of the existing documentation would’ve been (because good datasheets and documentation are more available now) and actually less messy (with some exceptions) than things were back in the days of the legacy hardware most existing wikis etc focus on.

Finding people with the knowledge, time and willingness to proof-read is also hard - but surely not insurmountable if we collectively decide it’s an endeavour we want to pursue.