Sorry, but I don't get your point.
The reason why you're continuously redirected to articles of custom ship is simple: there are many custom ships on the Wiki.
About the second part of your post - so? The number of fanon stuff is considerable and needs to be put somewhere. The FreeSpace Wiki is to provide info about everything concerning the FS Universe, including non-canon.
I think the average Wiki user browses the Wiki to find non-canon info such as custom campaigns, ships and so on. Most of us played the main campaigns ad nauseam and have a very good knowledge of canon... I hard believe people use the Wiki to learn the basics of the FS Universe.
Obviously, canon info is to stay where it is.