I don't think so if Google is getting crazy. i know they're always updating PR and I don't really know the reason why they do that.
The thing is Google is getting TOO random with it's updates and it's worrying alot of us that's the sorta point for this whole discussion i gather
Whoa now!! Hang on a second, where do you get off coming in here and talking sense? Market your website!! Are you crazy?? You could never do that. Nope, the only way to have a successful site is only through PR, and whatever the hell this so called "off-page optimization" is. You can't optimize what you can't control. Putting a link on a website, does nothing to optimize your site, and this ridiculous notion that link building is some form of optimization is asinine. I'm very happy to see that there is still someone out there that understands what it takes to make a successful site, and realizes that PR does nothing for you, unless you're talking about Public Relations.
I can haz PR1? Just kidding, the thing is that no matter what you keep doing, PR is just.. well like mentioned before it's a ghost.. and i don't like it >.> PR for me is around 4 lol and that my friends happened two days ago so i'm still kinda shocked.