I was told by my current employer that they almost didn't hire me because I was "too opinionated", and that it "could cause workability issues". This was because I was open and honest in my interview, and because they saw my website, which I used as a reference for my skills.
But in the end, they hired me, opinions and all. It's caused a few issues in their eyes, but I think they've learned they'd rather deal with me - where my opinions are out in the open for everyone to see - than deal with someone who is better at hiding things. That, and I'm very, very good at my job.
In the end, the problem fixes itself; anyone that wouldn't hire me because of the things I've said on my website or anywhere else, that's their loss, and even if I worked for someone like that, I wouldn't be in that kind of environment for long. The ones that take me get a very good employee who's loyalty is unquestioned.