We had a serial butt pirate in my area once. I think a total of about 5 men came forward. Once they caught him he was quoted as saying, "I'm not gay, I'm not gay" and in his pic he was pimped out like a thug gangsta / 50 cent style. He's not gay, but he likes to drug and rape men...
Also, statisticians say that 1 in 3 women who are raped come forward and the other 2 are too ashamed to admit it. I'm betting that 1 in 1*bajillion men come forward and the (1*bajillion)-1 men keep quiet.