How many times have you launched a site and missed a step to disable the “Discourage search engines” setting? With the Search Engine module enabled, and “Enable Warning” checked you won’t forget again.
From the “Search Engine” tab you can access the Search Engine Warning Settings. From here you can enable the warning (NOTE: this screen doesn’t change the site’s search engine visibility setting), localise the warning text and pick a background colour.
Pick something that suits your brand, but keep it hard to ignore!

Clicking the admin bar warning will take you to the Settings > Reading screen where the search engine visibility setting is managed.

