Hey!
I'm wholly flattered that you used the idea of Duck, Duck, Goose and created your own on another site. I really love the thought of games meant solely for giving and receiving. However, as the creator of the
original thread, I ask that, if possible, would you be willing to put up that URL on the first page, by where it says "I got this idea from another site". I checked Trisphee's TOS and their general use rules, and by posting that, I doubt it'd be against the rules. However, if you'd still be worried about having your account terminated, saying something along the lines of "I got this idea from Ryciera on Solia Online" would work, too.
Once more, I'm really flattered that you liked this idea, and not being a frequenter of many (any) other avatar sites, I love the fact that something like this can be implemented elsewhere. However, it still makes me feel a little more secure if it'd be credited, y'know? XD
Thanks for your time. Feel free to PM me here (though... I might not know how to access it) or on Solia Online (My username is Ryciera) if you have any more concerns. :)