I have discovered that terms like "search", "find", "finder", and "get" cause server errors (500) when they are search terms in Drupal's core search tool.
The culprit seems to be the permissions placed on Better Formats' "Show format selection for metatags_path_baseds".
If I grant permission to a user group, the "forbidden" search terms don't have a problem.
If I withdraw that permission, the search bombs and the user gets a 500 and white screen of death.
(1) This seems to be a bug to me.
(2) As a temporary fix, what are the potential dangers of granting permission to unauthenticated / anonymous users to "Show format selection for metatags_path_baseds" ?