Somebody use the "dynamic forum signature"? Where? :D

On the Giveaway-Page is a Tab called "Signature".

Here i see a cool dynamic forum signature png image. Text: "x Open for another n days n Entries"

-- The below code can be used to create a dynamic forum signature, helping to share your giveaway across other forums and communities with real-time stats. --

Somebody use this code / image / link? Can i also add this code to an external page (website, fb, twitter, whatever) or is it only for internal use on SG? What means "and communities" ?