As you can see on the Kunena forum they are using the jssocials.js javascript to display social sharing buttons on topics. It is the same script that my jsSocials plugin is based on. Did I ever tell you that it was a 'discussion' on github by the Kunena developers team that pointed me to the jssocials script and 'inspired' me to create a Joomla! plugin for it :)
In Kunena you have two configuration options (Kunena forum > Templates > Crypsis > tab [Features] :
- Display Social Share: on / off
- Social Theme: select which css to use
This implementation works okay but when you are using my jsSocials plugin on your website you know you are clearly missing out on some 'goodies':