Hi Adam,
I’m moving this thread to the “How To” category since this is clearly a comprehension question, not a bug report.
Sridhar summed it up pretty well:
It is only about the WordPress search. If you have a search field on your website and want the Bricks Posts and Pages included in the search results, enable the setting. If not, leave it disabled.
To make it clearer, I will add a paragraph about the search results to the Bricks Settings article in the Academy.
Best regards,
timmse