Back links are displayed for pages that are not referring.
|Reported by:||Owned by:||Trap|
Back links are displayed for "referring" pages that do not contain a link to the specified page, but instead contain the same word as text (or perhaps as part of a URL?).
So, if you have a wiki page called "Python" and another called "Subversion", etc, then there will be a ton of spurious back links pointing to various Trac Help pages that contain these as words (but not links).
Workaround: rename the wiki pages that have problems, eg: Python to ActivePython.