I am unsure whther to report it to ShareDaddy from WordPress JetPack or to you...
When I enable WordPress Jetpack, that has ShareDaddy along with it, your like plugin disappears. I either loose the sharing options of both the plugins or I only see the Jetpack one.
I want to use both plugins simultaneously: your plugin on top og posts and the JetPack (ShareDaddy) on the bottom.