I can see both sides of this, really. There's some RP that is exclusive to groups of people and that's where you'd want it encrypted, but that kind of thing can just as easily be posted between people involved on PMs or on discord. What's posted to the forum publicly should be visible publicly, but then again we have people that have a tendency to power/meta game and use information they see here which they would not have access to in-character.
Personally, I prefer the old method of just limiting who can post in a particular forum story, making it visible to everyone to read but then we have to rely on them not using that info ooc.