Even posting on this board, talking about the game, using information that your current character wouldn't know, and many other STUPID, TRIVIAL things are cheating.
The first rule of carrionfields is don't talk about carrionfields...
How many people do you think know each other inside the game? Just by knowing someone outside the game, and knowing who plays what character can get you denied (theoretically) because the IMMs punish first, convict later.
At least he admits he's done it. That doesn't mean he's done it recently or plans to again, just like you. Would you get off of your high horse, since you've been in the same situation?