The process of mass communication is not

The process of mass communication is not personal, because messages address a vast, unknown audience rather than a named individual.

It is impersonal by design, with no direct one-to-one bond between sender and each receiver.

Being asymmetrical is a true feature, since the flow runs mainly from the source to the many with little return.

Being anonymous is also true, as senders rarely know the individual identities within the audience.

Operating on a large scale is a defining trait, reaching dispersed masses at once.

Its impersonal, one-to-many nature is exactly why it cannot be called personal.