A mystery fairly commonly reported at the en WP:VPT is caused by users copying an article or category name and pasting it into a
link but accidentally picking up a bidi directionality indicator in the copy. Since these characters are invisible, users are often
confused why the resultant link shows as a red link rather than a blue link. I'm not sure it's completely safe to do this, but
should we consider stripping bidi indicators that are inside wikilinks (perhaps only if adjacent to a pipe or the opening or closing
brackets) when an edit is submitted?