The subject of visualizing a complex tree has come up intermittently in the various support forums.
A lot of different strategies have been suggested. Among others, suggestions have included various add-ons, custom filtering, and use of external visualization tools. These overview strategies have been discussed so often that we should have more than enough “grist for the mill” to write a good wiki article. An article would allow the strategies to be presented in an understandable way.
However, just collecting the discussions will take a fair amount of effort… and the 5.2 preparations have begun to consume all free-time of volunteers. Perhaps there is someone who is willing to do the basic research for an article? That is searching the various forums and compiling a list of links to the postings.
(If you are also to trying write an article, that would be great! But if you don’t want to take on learning to format the wiki’s typographical conventions with MediaWiki markdown, feel free to compose in your favorite word processor. Other experienced WikiContributors can volunteer to convert the formatting for you.)