Adds random 'did you know?' messages in the help region for administrators, on non-admin pages. The messages themselves are stored in the install file, and are transferred to the database when you install or update.
As it is, the only way to turn it off is to disable the module, which is instructive in and of itself. It shows random helpful 'knowables,' and is hard-coded to link to a path on drupal.org.
Needs a test. Also: Contextual menu/link that takes the user to a page with an explanation of how to turn the thing off. Perhaps something like hook_knowable_info(). And... Looking over the code now I realize I used t() instead of st() for the knowables file loaded by hook_install().
From the include:
What is a 'knowable?' A knowable is a short statement that introduces a user to a topic in a general way.
The main text should be two sentences or less. The first sentence is a broad statement regarding the topic. The second sentence explains how to achieve the topic goal.
Following these two sentences is a link to a page on drupal.org which presents a more in-depth discussion of the issue. This link has two components: The link target, as a relative path to drupal.org, and the text that is linked.
Example: "Drupal can be extended with modules and themes. These can be downloaded from drupal.org, and endabled on the Modules administration
page."