And what next do with this ? 
vanitysearch generate only absolutely fresh addresses ((( no ballance, target addres starting with 1NiNja and balance newer fined....
Of course it will generate a fresh address, the chance to get a collision with an existing "1NiNja" address with balance is extremely low. vanitysearch generate only absolutely fresh addresses ((( no ballance, target addres starting with 1NiNja and balance newer fined.... The whole address should be the same as the one with the balance, not just the prefix.
Vanitysearch isn't designed to do whatever you're trying to do.