Mistery person on the lemmings fourms

[GigaLem]

One day i saw the members that are online
and it said 2 user,2 geust,(1 mistery)
Who is it? http://www.lemmingsforums.com/Smileys/lemmings/shocked.gif" alt=":o" title="Shocked" class="smiley" /> http://www.lemmingsforums.com/Smileys/lemmings/huh.gif" alt="???" title="Huh?" class="smiley" />

[Adam]

That would be a member who has chosen to hide the fact that they are online.

[Dullstar]

Might it be what I was talking about in this thread here?

What is a "Hidden User"?