Cleaner for Kunena is a plugin for the Kunena component that removes the “Powered by Kunena” backlink/text appearing at the foot of Kunena forum pages. Additionally, the plugin disables the ability to view the forum credits page by using the direct URL. More information about the purpose of the plugin can be found in the blog article “
The last word about Kunena
This plugin has been tested (and works) with all versions of Kunena 3.0.x, 4.0.x, 5.0.x and now K 5.1.x.