Not very useful but fun ways to use MoinMoin.
Word Count
Moin does not have a word count feature, but it support regex searches. The following search url will show a page list with word count for each page:
http://example.com/?action=fullsearch&value=r:\w+&fullsearch
Don't try this here - it is too slow. It does work nicely if you limit the number of pages with a title: modifier. The following search will list any page starting with PageName.
http://example.com/?action=fullsearch&value=t:PageName%20r:\w+&fullsearch
For more info see HelpOnSearching.