The WordPress search form has name="s" value associated with the built in search system. As this is also used by the built in Search widget, I assume in the core somewhere is a $_GET['s'] statement. I had an user point out under WAI (Web Accessibility Initiative), form name values are to have human usable values. Therefore, the request was to change name="s" to name="Search". Of course, such a change would involve changing to $_GET['Search'] for the WordPress core search.
Is this something that can be changed via Filter or Action Hook?