Yeah, had an authority site that in August lost its PR3 and has a PR 2 these days. Today was a bad day, I had about half the normal SE traffic for a Sunday. Site is white with a bit of grey, I have a feeling this one is about over optimization.
Fucking Google, my site is a site that solves people's problems, and people send me actual emails daily thanking them for having this site. It's a 100% no bullshit site and deserves to have a higher PR but it is too young yet. I was pissed for them dropping my PR and I believe it was cos I was messing around with G+. Other than that, the site is brilliant.
Fuck I'm pissed off, it's not like the site is spammy. Only have some Adsense, not even Amazon ffs! It also isn't an EMD and the name of my site is x10 higher in searches than when I started it. I think Google is getting too crazy with trying to get their "user experience" thing. Some of the stuff on Page 1 in my niche is stupid, non relevant, breaking copyright laws and has affiliate stuff everywhere.
Just reporting for you folks, I believe this one is about over optimization. I made the mistake of over optimizing when I started the site cos I was reading too many idiots who had no idea on SEO (namely, reading the warrior forum).
Good luck to all of you.