Kundalini, Daisy...

As I voted, its a difficult question. If people think their PMs may be revealed, it will likely cause them to think more carefully what they say - which could have the effect of their not expressing what they truly feel in case it is misinterpreted... this could be good, in that people might think twice about posting an otherwise rude comment; but could also be stultifying.

On the other hand, if someone is being really "over the top" obnoxious, or being an absolute pest... it might be salutary for their PM to be revealed. It also helps to publicly back up a Moderator's position on a post. I think overall, a Moderator should have the power to reveal such a PM, but perhaps it should be subject to having warned the offender that this may be the outcome if they persist.

It is certainly sad that such an action should ever be contemplated as called for - but such is the way of the world... Even in Parliament, the Speaker has to have his powers to moderate what is said, and take corrective action if things get too disrespectful!

Pounamu