^
She has a point.
I myself at one time was a Koharu hater. Then all of the sudden, I saw the light. Koharu was not in fact this horrible demon who infiltrated Morning Musume. No, she is what an idol should be: Happy, cute, and as Shi said, in your face.
And really, don't complain about her singing ability. At least she has energy and makes do with what she has. She'll improve. Look at Sayu. And I could make a pretty decent list of idols who can't sing. I personally don't like Ayumi Hamasaki's voice and look at how big SHE is.