Ban on Cross SGS sim criticism

We have had reports of Players from one of our sims using the public chat of that sim to criticise another of our sims. This is clearly unacceptable.
This is kind of behaviour is totally banned from all public Chat in any sim. Besides it being an offensive way to act towards me and Kora, you should know that the harm you do to one sim will eventually reflect on all the others.  Please do not do it, or we will have to take drastic action to stop those that do.