The "Hamster is rude" misconception pisses me off.
People call her rude when she doesn't smile, and then turns around and call her fake when she does smile. Yes, she pushed Nicole. People got over that years ago. Yes, she was rude on some TV show, but that was to promote KARA's name when they were facing possible disbandment. Yes, she is more quite and reserved, but I don't see how that is a bad thing.
I think it is mainly the international fans that dislike her the most because they only have access to negative news of Seungyeon. Too bad for them, Korean guys love her. I do too, even though I'm not a guy and I'm not Korean.