Shortcuts are wikilinked on community pages, talk pages, and edit summaries, but not in mainspace articles. Transclusions in mainspace are common and do not need to be "fixed".
From an alternative spelling: This is a redirect from a title with an alternative spelling of the target name. Pages that link to this redirect may be updated to link directly to the target page if that results in an improvement of the text. Do not "fix" such links if they are not broken. Also, these links should not be replaced with piped links.
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.
When appropriate, protection levels are automatically sensed, described and categorized.
