I mean, just for reference, the message is
%% There's no scene running here. Starting a scene will activate repose and make it easy to share the scene with the web portal. Just do scene/start if you want to start one.
Anyway, to answer the original question...
I play on both Spirit Lake, which is very OOCly transparent, and Arx, which is not. I like the way it works for both of those games. With SL, I like knowing OOCly what's going on because I feel like it fosters that collaborative environment.
On Arx, I think there's so much lore and so much of the theme is built around it and the mystery of it, I like not knowing things OOCly unless I know them ICly. I think that works very well for the IC theme.
So really.. my answer is.. it depends on the theme, and what 'feel' you want from the game.