Being told that one is as unexpected as seeing a cockroach in winter, does sound like a much more pointed criticism than the usual 'baka' teasing......
All summer long, you never know when a cockroach will scurry by your feet on a sidewalk, or in your house or a shop.....
But no matter how cold and windy it gets in the winter, there are no cockroaches to be seen....
so to see one in winter is unexpected, and in a disgusted way. (it is a pretty funny line though, I will have to use it sometime)
For a career in Japan entertainment, you don't want to piss off people like Sanma, Akiko Wada, Tamori, Beat Takeshi, etc., so I do hope that someone who is looking out for Koharu, and who has a feel for what happened, will give her advice if warranted.
Some people were standing up for Koharu (in foreign fan community) because she was being honest, but I also question that as an eleven year old, she had a grand scheme to leapfrog over the other junior high kids in H!P onto the cover of every fashion magazine, and finally into the Imperial Palace............(okay, that part I made up)
If she has a magazine contract and enjoys modeling, more power to her, maybe pissing off a lot of idol fans (if she has) won't really do much to her in her current pursuits anyway. But time will tell.
I tend to root more for idols who have made mistakes due to their own struggles in real life and their young age (Ai Kago, and Maki Goto, in her own way), and then try to find their way as adults.
I don't really have a feel for what Koharu is like. I do remember thinking how unfair it seemed for someone that young to get so much of the kind of criticism she got back then.
But maybe she could learn from the great one, Miki Fujimoto- you don't need to say everyithing you are thinking at all times....just an icy cold death stare, employed at the right time, conveys what you are thinking in volumes, yet you can't be quoted.