There is Freedom of Speech in our Constitution in the US. Just because you have the right to communicate doesn't mean you have to.
Do Not Give or Receive Communication Unless You Youself Desire It is the next point in the Code of Honor. Some people feel any comments they have about something (namely this site) has the right to be heard and published here. There was a great blog a couple of months back in Grahame's Scientology Blog site that tackled this. Read it for yourself and come to your own decision.
You have the right to give and receive communication as you wish.