Actually, far too many auto drivers claim that they never saw the motorcyclist they hit.
In my case, I was stopped at a corner (I had a stop sign,) and this idiot woman turned left far too sharply into my lane, and I was able to jump off my bike when she plowed right into it at about 25 miles an hour. I wore a bright red helmet with reflective tape, and a neon yellow safety vest over my jacket. Did I mention is the the middle of the afternoon, and there was no other traffic? She claimed she never saw me. She also claimed I had run into her, but the fact that the motorcycle was more than 15 feet into a front yard and her bumper, grille, and radiator were damaged belied her claim.
Another time, I was in a left turn lane at a red light waiting for it to turn green. This idiot pulls into the SAME LANE, less than 2" from my leg. I knocked on the window and his passenger freaked out. Again, he claimed he never saw me.