The ALS documentation is invaluable to aircraft effects modelers, at least this one! (...) The novel you wrote for the Shuttle is, for those that need it, irreplaceable without becoming an astronaut and reading through volumes of technical data as you did.
But these are just two examples of having to expect to explain the same thing over and over again It is reasonably clear that pretty much 'every' aircraft maintainer would want to know how to properly implement ALS goodies, or that everyone who wants to fly the Shuttle asks the same question - so these are areas where we can expect dozens (or in the latter case hundreds) of readers - makes it worthwhile.
But should I document e.g. the way the Shuttle ADI ball is done? Or the way ALS does the upper edge of a fog field? Perhaps people will tinker with that as well - perhaps not - but the expected number of readers is 0-1 or so.
And in the first case - just observe how many people do not read the Shuttle documentation and just ask anyway...
The point is not that it's a waste of time to document anything - the point is that there's some cost/benefit analysis involved, and the more technical the problem is, the less useful it is to try to document it up-front.