As I suspected, the results people posted from the digital IQ quiz were indeed interesting, but not for the reason I expected. I had pretty much assumed everyone would be at the upper end of the scale, but there was actually a considerable range.
When I really thought about it, it made sense. The way I see it, there are those who's technical proclivities brought them in contact with blogs, & they took it up from there, and others who are predominantly interested in the writing process, and latched onto blogs for that reason. And some, like me, are a mix of those 2 approaches. So my initial assumption was shortsighted.
Thankfully, there are lots of different kids of people blogging, and almost as many reasons for doing it. For me, that's a big part of what keeps it interesting.
Thanks everybody for taking the quiz & letting me know your results.