I don't think this matters. Since I'm advocating privacy of communications, you could arrange to use trusted third parties and encryption such that others would

I don't think this matters. Since I'm advocating privacy of communications, you could arrange to use trusted third parties and encryption such that others would not know what you've been saying, or with whom you've been communicating. It's perfectly reasonable for an employer to monitor communications while on their premises, and it is generally illegal for them to wiretap your home without you knowing about it.