I'm a relative newcomer to Ham SE, but I can already think of some ways documentation might be really useful to us. For example, there seem to be fairly regular questions about lightning protection, and a good number of well-thought-out and well-documented answers. They could all be gathered together on one Documentation page, which could be more broadly focused on the principles and practices of lightning protection, rather than answering one specific question about the best way to ground one particular rig.
I could see this feature being useful for a lot of other areas, including (for example):
- How to get licensed
- The differences between amateur and other radio services
- General tips/questions to consider when purchasing a radio
- Basic principles of antenna design/installation/safety (obviously a very large topic)
From reading the site self-evaluation posts, it seems one of the main concerns for the last few years has been that we don't have enough questions. Perhaps this kind of documentation would increase our visibility and help with that problem by improving our general reputation as a good resource for getting questions about radio answered.