Apparently it is not possible to report on tags. Currently the only way to report on specific ticket types is to create global categories or use a custom field/form. Unique tags are the perfect "on the fly" way of reporting specific tickets. An example of this is tracking tickets that come from an emergency automation after hours (big red button type of scenario). These tickets can be tagged using an automation rule if they come from a specific email address and a report can be created for department managers. This type of reporting can help create accountability and help managers understand where training may be needed to decrease after hours ticket load.
Creating custom fields/forms based on categories or creating new categories can cumbersome. Too many fields get's messy and deters people from wanting to fill out all the items.
