My other blog pages got ranked high too!

In my previous post of my blog who got ranked high doing nothing, this is another surprise. I have received many comments from my other pages about interesting topics, and in a flash I have see their ranks are now upgraded to PR2. I can't believe not only my main page got ranked high, but also my other sub pages too. In that way, I did not perform search optimizing in my other pages, but I only receive comments from random people which are contributive to me, and this is the result.....my other pages got ranked high about PR2. I have never achieved this way before, because when I use Blogger for search optimizing, it could rank high as long with comments which you have do-follow enabled.