From a page move: This is a redirect from a page that has been moved (renamed). This page was kept as a redirect to avoid breaking links, both internal and external, that may have been made to the old page name.
This rcat automatically tags all redirects that result from page moves.
From an alternative name: This is a redirect from a title that is another name such as a pseudonym, a nickname, or a synonym of the target, or of a name associated with the target.
This redirect leads to the title in accordance with the naming conventions for common names and can help writing. It is not necessary to replace these redirected links with a piped link.