Years ago I found a site that did a really good job of ranting about Microsoft. It contained a series of articles called "Understanding Microsoft" by Tom Nadeau. Sadly, this site went off line at some point in 2010. However, at the time of writing (July 2012) it seems to be back again. I haven't had time to put together a proper rant myself, so you will have to make do with The Halloween Documents for now. and a rant by Eric Raymond.