@Thenomain My worry on this one is scenes in shared spaces. Again, I played on Shang for... a long while. And I can just see someone rushing into a hotel room on a game where this code was in place, and immediately reading the contents of a private scene they were not involved in/etc. for kicks or snooping.
Also, truly... (again having played on Shang), if some few poses are caught from a previous scene even in complete innocence, well. There's just things one can't unsee, guys. <curls into a little ball, shudders, fumbles around wildly for a security blanket> In a game with heavy PvP, it isn't so much the unsee factor, but 'oh, that meeting just went down in <location> with my rivals... why don't I go see what they did... ' could pose an issue.
S'why I suggest the '+poseclear' option be present -- so those concerned about such things at the end of a scene can prevent embarrassment/therapy bills/potential cheating with said code.
An additional option would be to completely clear the log when the room becomes empty, or there are no character objects less than X time idle in the location, possibly, (as some players do idle endlessly in a home or business location)? That'd handle it nicely if it is possible.
Edit: Also, the obvious... a lot of us don't use lock code much any more because it's not part of the acceptable social norm to wander into someone's private IC residence without invitation, and most folks know that. That doesn't stop a bad actor from going into every bedroom on the grid and checking the pose logs to dig up dirt, snoop, or stalk, unfortunately.
I figure, if I wanted people reading my (bwahahahaha like there actually really ever is any these days) smut, I'd be writing it in the town square in public view. On the off chance it does happen, though, I think it is entirely reasonable to prefer that total strangers who walk into the room next NOT get the spambomb of everybody's virtual o-face, y'know?