Yep. That's a question mark you see right there, not an exclamation point. I am just surprised how this blog could get a PR that high when I don't do anything special for it. It was PR3 originally, then gray bar for a long time, then PR2, then PR4, where it is right now. A roller coaster of a ride, no? I've quite figuring out a long time ago about how the algorithm works, and just when I couldn't care less about whatever PR I get, then comes this.
Google is messing with my mind. LOL. I don't know how long the PR will last, but I sure will try to enjoy the benefits that come with it.