Yeah, I can think of several instances in other games where players would screenshot a conversation from a guild or party chat, and the player would suddenly disappear, and the next thing you know "XYXYX just skyped me to say his account got banned :(" This is usually because someone in the chat was part of the stealth anti-cheating group (people who have a direct line to GM's.) Make cheating inconvenient, and people will be less willing to go through the effort of doing it.
