That was the end. I vaguely remember a site/blog which was active between the start [1][2] and that end. So it was more circa ~2007.
That period was my first years of full-time GNU/Linux usage, and I only started serious coding years later. In my mind at the time, their content was correct to hate on Microsoft (I always hated it myself, including when they did the bullshit “New Microsoft” rebranding attempt much later). But the site/blog content, I felt, verged into the obsessive and conspiratorial. And I can’t help but wonder how their content aged, and what would my current self think of it.
I asked an artificially unintelligent tool to find me the answer, and the closest hit (which doesn’t exactly match what I had in my foggy memory) is:
https://web.archive.org/web/20100301115820/http://boycottnovell.com/
The topics the blog posts cover are similar(ish) to what I remember in any case.