http://www.livejournal.com/manage/settings/ - go and make sure your content settings are how you want them to be. The search is set by default to moderate, which is one of those things where it would have been very nice if there were a warning. If I were in charge of implementation, I might have left current users at no filtering, and then set new users by default to moderate or whatever. (I'm not in charge of implementation.)
In other news, I won't win NaNo, but the novel will be finished.