Default - the text "Homestar Runner Wiki" links to your userpage on HRWiki if you have the same username on Wikipedia as on HRWiki. The category Wikipedians who contribute to Homestar Runner Wiki is added.
Same as the default, except now the text "Homestar Runner Wiki" links to "User:Example" on HRWiki (instead of linking to your Wikipedia username) and the category will not be added.