A little bit of philosophy:
I really understand the hard work that's behind a conversion, but I really can't understand how you expect that something shared freely on the internet will remain "yours".
Recently the OSR Team updated my reworked version of the Pantera GT5-S (from the conversion of s3r1u5) and credited me for the physics. Well, I was really proud of that!
The AC community should act along the lines of Wikipedia, where everyone adds their knowledge, their skills and nobody expects anything back!
I hope that one day we will go one step further towards the concept of sharing and we will come out of this "war" of selfishness and superstars!
Have a good day guys!