According to :
http://www.wpthemedetector.com/ , Cointelegraph don't even use Wordpress
I also searched and I couldn't find anything about it here
https://wordpress.org/plugins/ , Bitcoin have a very low support for what comes to Wordpress (which is considered #1 CMS) but well , It seems like some web developers are interested into making Ponzi scheme instead of helping the community .
I know they dont use WP.
I have posted the link as example (the sharing/reward module)
I am also interested in this. Perhaps Mashshare.net could integrate bitcoin tips for sharing posts into their existing plugin.
What I have found until now is this:
https://wordpress.org/support/plugin/wordpointsIt give points to users (wich can be converted in BTC).
But it does not have the option to give points for sharing posts ...