Absolutely.
In addition to that, I make sure that every message I send to a townie is different so that messages can not be compared for similarities. I remember this was a problem in an early game. Some townies recognized that their messages were the same and were able to find other townies based on that. For instance, one person may get a message like:
Your role is a townie.
Another person may get this:
You are ;alkdfa;ldsjkfhna;sdljfh townie.
And so on and so on. Because of that, I don't care if people do pm one another since they won't have a form message to compare nor will they be able to trust any qoute given by another person. I'm trying to make it easy so that anyone can make up a message about their role but if you still want me to send you a qoute, just ask.