Alright, so you can now make anonymous posts, just keep in mind that you must click on "go advanced" and put a check in the "make post anonymously" check box, otherwise you'll be posting under your normal user name.
This option only works in this section of Naruto Lounge, and also please know that staff can easily find out who made the anonymous posts, so try not to abuse it please.
Here's a screen shot just to make things easier for you if you haven't noticed the check box.
feel free to make test anonymous posts in this thread.