The advantage of the wiki is that it is not rigid - it allows anybody to create pages on any subject. However, the contents of the wiki are visible to everybody - not just members of the club. This means that we need some basic guidelines to allow the wiki to be as useful as possible.
One of the main concepts of a wiki is that the pages should be complete in themselves - each page says something about what it is for and does not assume that a visitor arrives at the page via any specific route. This means that somebody finding the page via a search engine can understand what the page is for and the context in which it exists.
Part of this is to adopt a reasonable page name convention.
Part of this is to adopt a common style of page structure