Any Addons that are paid, or have a premium version need to be reported. Those violate the Blizzard terms for use of the Blizzard API for addons and such.
With the continuing popularity of World of Warcraft user interface add-ons (referred to hereafter as “add-ons”) created by the community of players, Blizzard Entertainment has formalized design and distribution guidelines for add-ons. These guidelines have been put in place to ensure the integrity of World of Warcraft and to help promote an enjoyable gaming environment for all of our players - failure to abide by them may result in measures up to and including taking formal legal action.
- Add-ons must be free of charge.
All add-ons must be distributed free of charge. Developers may not create “premium” versions of add-ons with additional for-pay features, charge money to download an add-on, charge for services related to the add-on, or otherwise require some form of monetary compensation to download or access an add-on.
This thread almost comes off as an way to promote the addon 
Those round about ways to make folks aware of it while “just asking questions”.