OOC message should only contain information like "heading out of town for the weekend" and "you can refuse to become marshal via the politics tab". There should be no reason why you would care that someone else received that information via torture report.
The original question was posed with the opposite purpose: Because the torturer doesn't (shouldn't) care about OOC messages (due to that very cited content), they shouldn't appear in torture reports. It was never aimed at protecting others' OOC messages, but rather (potentially, depending on the algorithm) increasing the efficiency and realism of torture reports. (After all, I can't imagine a noble yelling out that some voice in his head was trying to talk to other voices in other nobles' heads.)
In a major sense, getting an OOC message is wasted information for a torturer, especially if they could have got another letter instead.
