There is no way to find out! Neither Google nor Wikipedia is of any help!
But its
easy. TUSC is short for "Tired, used, shameless, cruel", which are the four essential traits of the Acknex developer.
We used to have stars here that displayed the amount of traits one had perfected (you'd have five if you got a 100% rating in all of them), now we have these smileys. A smile is for "shameless", the white face is obviously "tired". The title gives you how "cruel" someone is (i.e.: Spike is an "Expert" at being cruel, while Inestical is still rabbitly* developing that).
How you can find out how used someone is? This I haven't figured out completely. Thats why I used to have four stars (To clarify: I had perfected being used, which is evident if you search for any "camera"-thread in this forum ever, but since I couldn't figure out how used anyone else is, I couldn't get 5 stars)
... Well, all this is my
theory. ... I'm not wrong, right guys? I mean, it all fits so well!
* i hate myself for this jokeEDIT: Noooooooooo. I didn't think this would create another page.