You're lucky, then, to not run into people who say negative things about JKR - they're everywhere that I've seen. If the plot doesn't go the way they like it, they claim that she isn't being true to the characters - but hello, she wrote the characters. How can she not be true to them? She's had the story planned out since before she started writing. And unfortunately, this example is only one. People have called her horrid things because the stories don't go the way they expected them to - she even addresses the issue on her website. Therefore, they must be out there, and in numbers, if she takes the time to straighten the issue out.