A word of advice... from one webmaster to another.
There have been plenty of times that I wanted to unload on some company and use one of my websites as a medium to do so. But... if you want your website and yourself to be respected and viewed as a valued resource on the web. You have to put your personal issues aside. I'm not saying that you should not write what you want to, just make sure it's worded properly and try to stay objective.