Ok, I've updated it over on at
https://beta.rpol.net. Needs some testing.
There was a security issue allowing players to view as other characters; private/language groups. Currently there's no way to see who's in a private group, part of the charm. So when previewing as someone else it could reveal who was in what group, who understood what language etc.
So... if a non-GM previews as someone else it'll automatically hide any private/secret lines that include/exclude a group and it will scramble all language lines.
That should preserve the security of those groups.. but that's what needs testing out! Don't want to post the changes here until someone other than I has checked it's not going to open a loophole.
Also as part of this change I've moved the "preview as" option to the preview screen so don't be shocked when you initially find it missing.
Have also removed the post button from there as it's redundant, also could have been a little misleading as people could change the text below and then use the top post button (which posts what's in the preview, not what's in the compose area).