You are correct, Premium users should not see ads on the News, Forum, or Guides pages. I've issued a temporary fix for now.
Update: Sorry, they are back again. Here's what's going on: during the E3 traffic spike, I enabled caching of the blog pages to disk. This saves a "static" copy of the page to memory. While this greatly reduces the strain on the server and the database, it prevents dynamic execution of the PHP logic built into the page - effectively bypassing the conditional statements which check to see if the ad code should be included. My "temporary fix" was to simply disable this page caching. However, because we are still getting unusually high levels of traffic, the server load increased by 300% to unsustainable levels. Unless I can figure out another way to solve this problem, there will be no way to hide them for you guys right now.