Many of the sentiments on this board mirror my own thoughts. Part of the reason I was initially attracted to this site was that Steve DIDN'T write like the majority of personal development writers: He was methodical and analytical, explained things logically, and generally assumed his audience was critical and skeptical, but open-minded and eager to learn. It was a unique perspective. The most recent articles -- to me at least -- feel hazier, and a lot more like lots of the other PD books I've seen and read.
I'm not saying Steve's articles on polarity are wrong or misguiding, just that they're among the first of his original ideas to require a pretty strong leap of faith to adopt. Everyone's mileage varies, and like someone else said, it's a free site. I've gotten a LOT of good advice from this site, and if I choose to abandon it for any reason, I'll do so knowing that it's done me worlds of good.
(And speaking as an English major and occasional college composition teacher, the word "tone" is used correctly by the OP.)