Agreed, as happy Apple customer I see plenty of anti-apple sentiment. I suppose I'm a little more sensitive to it. This is a common issue on many forums.
Anti-X sentiment takes a lot less effort than writing a cogent pro-X message supporting something, and everything has it's pro- and anti- crowd. I've seen plenty of posters complain that this, and other forums are anti-Apple, anti-Linux or anti-Microsoft when in fact there's a fairly healthy mix of opinion.
Maybe there is a trend against Microsoft in the news and forum world though. It doesn't seem all that long ago that most tech news and most interesting tech articles were about Microsoft products and technologies. Maybe that's still the case and I'm living under a rock, I doubt it because I still use mostly Microsoft platforms at work but it's possible, but there just doesn't seem to be all that much new and interesting stuff coming out of Microsoft these days. It's fairly rare that anything by them moves the needle in terms of tech punditry. They need to radically increase the value proposition of Windows and Metro just doesn't cut it. Maybe the Metro version of Office will help it get some traction but at this stage even that may not be enough.