I am not sure if what I saw is a stealing or it is just the semilar design. I am sorry if it is nothing at all and I gave you a headache becuase of my miss understanding. The problem is that I don't get into forums that much so I don't know if it is a common thing to have a similarity in the designs or not.
I will say proudly that the only forum I knew all my life is Using English. I knew about the other one by one of the pop-ups.