Okay, I've read the entire thing more attentively and I have one problem with this.
If you want to say or do something in character you should always be ready to deal with the IC consequences. I would hate people using this outlet as a means to fool around, insult or libel someone and not face any consequences because it was technically a different character.
You can already do that, RP's are not necessarily IC knowledge. If I RP talking to myself in my estate far from any prying ears, and use that RP to insult all and sundry, or even perhaps hint at plans like rebellion, that is NOT IC information for anyone else. The fact that there are players that ignore that doesn't change the fact that there are right now methods to do what you "fear" that should be pretty much free of IC consequences.
