lets not accuse people of ripping sigs, especially if you dont even have proof which you dont.
All you knwo is tat the 2 sigs have the same background, they probably have never seen each others sig and who's to say they even made it themselves?? There are plenty of places to have sigs made.

And anyway alot of SOTW allows submission of sigs you didnt make yourself inc:
Nova-Arena
DF-Inside (where he won)
WarGameArena

Whats so bad about using stock images anyway? You are allowd to use fonts you didnt make.