Colors of background, buttons, envelopes, etc.
The color and location of the Announcement topic/thread that is right above the bold print "Post New Thread" just sort of blends into the ads that are right above it and it seems very easy to overlook.
The only reason I happened to "notice" it was because I was wondering if/how the rules/guidelines had been changed.
Maybe have it outlined in neon orange or something so it stands out more???