I think the etiquette should be as follows:
X posts info. that might arguably blow a great deal for everyone.
Y PMs X, politely suggesting an edit or delete for the sake of keeping the deal.
X politely PMs yes/no/maybe.
Y accepts X's decison and lets it go at that (unless there is some FT TOS violation).
I'm not saying anything about what just happened in this thread (please don't rehash it, anyone) -- just a suggestion for proper FT behavior going forward.