I've been around a while, and remember at least the last public CB logging discussion. Put simply, there was no "rule". Perhaps a "guideline", or "general agreement", but no rule. And to the original poster's credit (of this thread) I don't remember them being on the site during that time anyway. How would you expect them to know the "rule"?
I think that until recently everyone has asked about it before doing it(i may have missed something tho). In this case the inverse happened.
If a "rule" does get created and written to an official node, i'll have to think a long time about it's contents. I like the community aspect of the site. I like how behavior on the site is not a documented process, but an unpredictable, evolutionary process, constantly progressing and regressing like a tide with each new wave of people.
Remember that the new people who are participating on the site don't always know what guidelines of conduct the others have loosely agreed upon in the past.
P.S.- Not all node posts are always "spoken with more care" either. Some would have been better off as chatterbox posts. :)