Why MT Wiki contains incomplete information?

for example https://wiki.mikrotik.com/wiki/Manual:IP/Route
do not have information about “Rules” tab settings.

That is true…
However you can find an example of routing rules here https://wiki.mikrotik.com/wiki/Manual:Routing_Table_Matcher#Routing_rules

There is much more information in this wiki than what you see if you only navigate from the MAIN page.

95 orphaned pages ??? . Is this the most important page to find that extra info? : https://wiki.mikrotik.com/wiki/Special:AllPages