Every node edit form in Drupal has a "Promotion options" fieldset containing "Promoted to front page" and "Sticky at top of lists" fields, but they don't automatically do anything. And they don't have help text explaining what effect they do have even when they are used. We're using them on "Blog post" but not elsewhere. We should hide them any time they're unused and consider adding help text explaining the effect they'll have when where are used.