Uninstalling

Deleting the plugin leaves your schema data in place, so reinstalling restores everything. To remove it permanently, tick Delete all data on uninstall on the Tools screen before deleting the plugin. That also removes the results of the check of every page, and what authors typed in the Author Markup section of their profiles. On a network those profile fields are shared by every site, so they are removed only when every site that had the plugin ticked the box. Deactivating or deleting the plugin always stops that check's scheduled batches.