It seems that the orphans plugin doesn't recognize markdown-style links of the kind:
[Pretty link name](realname)
In my wiki, the page "realname" shows up as an orphan although it's being linked to.
Like anything in ikiwiki that deals with links, this only takes WikiLinks into account. There should be no real reason to use other link mechanisms provided by eg, markdown for internal links in the wiki (indeed, using them is likely to cause broken links when doing things like inlining or renaming pages). --Joey
The orphans plugin fails with an error when it has to deal with a page that contains '+' characters as part of the filename. Apparently the code uses regular expressions and forgets to quote that string at some cruicial point. The error message I see is:
[[!orphans Error: Nested quantifiers in regex; marked by <-- HERE in m/^(c++ <-- HERE |)$/ at /usr/lib/perl5/vendor_perl/5.8.8/IkiWiki/Plugin/orphans.pm line 43.]]