Sgt_Kickaxe - 3:52 pm on Feb 7, 2012 (gmt 0)
It's not a coincidence, you've gotta believe :)
I noticed that content on page A now impacts rankings of page B a whole lot more than it used to. If you have a high % of low quality pages it seems that you can expect less traffic to your high quality pages. Remove the low quality pages and the traffic returns to the high quality pages. At first I thought this must be due to internal link structure and how rank flows around the site but after running a bunch of tests I found that it's not.
It's a shame too because even a crappy site can occasionally have a gem page, geocities sites were a good example. Moving away from determining quality on a pages OWN merit is going to allow more great pages to get missed altogether by regular search users.
Did you just publish the best article of all time? Awesome, but it's too bad your site is new and/or given a mediocre overall grade! ahh well.