It was excessive hate. I have run more than one campaign of Alternity (a sci-fi roleplaying game) and all have included more women than men.
That said, most of the people I know are excited about the prospect of a female Doctor, while a few are a bit apprehensive because of “tradition". I only see hate on comment boards online in terms of Doctor Who, and it seems most people are willing to give her a fair shake.
That said, there is certainly a fringe faction of haters who seem hell-bent on being the most close-minded fans of sci-fi. Vox Day being a particularly nasty example.