To my knowledge, I haven't violated any terms in the Art portal, or on NG for that matter.
I recently noticed that I have been unscouted and wish I would have been informed of why am no longer scouted so I could correct the issue.
Honestly, I'm a little fuckin' pissed off!
Kinsei
if you didn't get a notice about being unscouted, then either the guy who scouted you got clipped, or someone you scouted was bad enough that you got unscouted as well.