Every person that 'Poster Bob' talks to on Instant Messaging programs that also play Cantr will probably know that he's quitting (Because he'd tell them, wouldn't you?) - They'd know his characters if they were close enough friends or asked.
This thread is just publicly telling who his characters are.
As well, his characters will die, or be transfered to someone else. Doesn't mean people will be going 'land-grab' on his items. Some locations have laws that protect the deceased, others have rules where their objects become claimed by the government, some of the characters might give the items away to their love one in anticipation of "going to a higher plane of existance".
In any case, it would add possible role playing to the game, when a character dies. At least, it SHOULD. The ones close to them will cry, others will busy the body and give sermens (At least, in some places where they do that), others will become thieves at the mere thought of grabbing the posessions off the ground for their own personal gain, etc etc.
CR breach or not, it opens up doors, if the characters are known or not. Even if the characters wern't public, the character would still die (Or be transfered to another player) and the same thing would happen. The only thing that telling who the characters are causes, is that some players might try to get to these locations (Which, then, THEY would be causing the CR by "using OOC knowledge IC") and others will stand around and wait.
As was stated, when the player dies, no one will know except the player. Or PD, when they press the button
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