Specifically, you are missing out on the announcement that SixApart (parent company to LJ) has a new CEO. Exit barakb25.
Also, you would have missed out on the news that LJ is now using some sort of logging code. The logs will be mined for suggestions on how to improve the design of the site. But a dilligent scrutiniser will probably be able to correlate the trace of a certain logging cookie to your account (if you are selected to participate -- only about 5% of users will be assigned a logging cookie).
LJ has provided a way to opt out of the logging thing. The post has details on how to do that.