Did you only do this for XP or is this also valid for Win2000?
Only for XP.
Have you contacted him and linked him to this thread?
What's the point? He never answers his e-mail. His site contains many admonitions not to contact him and his e-mail address isn't public. I contacted him a year ago about errors in his guides, he never wrote me back, so I don't think he's very receptive to criticism. From the lack of maintenance or updates on his site I suspect he doesn't care anymore.
People have a tendency to want to diss people they become dependent on, whether deservedly or not. Is that the reason some posters here are hurraying the debunking of DV?
This makes no sense. Who is dependent on BV? The people here who think he's ignorant and don't apply any of his advice?
Or is he actually a jerk?
The worst you could say is that I think BV is irresponsible for recommending sweeping and potentially harmful changes to the OS without having perfomed thorough tests first. Compare to a drug company releasing a pill on the market without having conducted clinical trials.
Well, sorry, but I have to take issue with the contention that he doesn't know what he's talking about.
There's no such contention. The contention is that his claims are wrong, he has not run tests, and his terminology is incorrect. This is backed up by plenty of hard evidence, against which BV himself has (or at least posts) absolutely no hard evidence.
You can draw your own conclusions as to whether or not he knows what he is talking about.
Among the people I've seen posting their computer advice on the internet I thought he came off as knowledgable and without a particular agenda. My impression was that he didn't have an axe to grind and that he makes his money elsewhere - not from his Windows guides. Am I wrong about that?
Who knows? This isn't about him, it's about his advice. If it came from someone else I would treat it exactly the same. I'm picking on him because his guide is the most-cited and most-talked-about, he's apparently been on TechTV talking about this nonsense - exactly the same reason why in any discussion of e.g. operating systems, Microsoft will be mentioned at least once. The same is not true for less-used OSes, especially niche ones such as BeOS/Zeta, SkyOS, QNX etc.