If I receive an unsolicited message that reasonably offends me, then my individual rights are being violated. Community standard is a integral outcome of the cultural interactions between individual members in the community; while it is a factor in determining violations of individual rights, it is not a community right, because no collective right can possibly be.
What rights? And in what way are they violated?
Of course, it isn't a right. It's a community agreement. A community policy.