Search results ignore the post information settings.

In this regard, Faceted Search suffers from the same problem as Drupal's core search module, because it uses the core's theming function. You could override the theme_search_item() function in your theme to correct this. Of course, Faceted Search could improve on this matter, but I think the right thing to do here would be to improve the core (there is an issue about this). Unfortunaly, time is short if we want to see this improvement happening in Drupal 6 (the deadline for new features is June 1st).

Note that Faceted Search can display the search results differently. Just replace 'extract' with 'teaser' or 'full' in the search url and you'll get the results displayed as a list of node teasers or a list of full nodes. These should take your display settings into account. Eventually, I'll add some UI to Faceted Search to allow selection of the display style.

@ryo: I have just submitted a patch against the core to improve matters a little bit. If you can give feedback on that issue, that might help the patch get through.

Marking as duplicate since it is related to Drupal core (#70722: Search results should respect the content type's "Display author and date information." option).