This is my own little explanation of nli ^_^

If you don't change your screen name a little 
bit then you can't post with it without signing 
in!  (A great way to make sure that no one can 
post stuff under your name).  

If you posted with your name only slightly 
different (so you didn't have to bother with 
logging in) people might think it was someone 
else, so the easiest way is to just announce 
that it's you but you're lazy (nli)! ^_^