6.13.3.2 PubSubCommunicationFlowConfigurationType specifies a Variable "PublisherAddress" with the following definition:

//The optional PublisherAddress specifies the destination network address to be used for transmission of NetworkMessages by the Publisher of the information flow. This is an abstract type, and a concrete subtype shall be used. For the definition of NetworkAddressDataType, see OPC 10000-14.//

Problem: The name PublisherAddress implies, that this is the address of the Publisher, but it is quite the opposite, it is the address the Publisher is publishing to (which is also stated by the definition).
Proposal: Rename to "PublishingAddress" (the address used for publishing).

Analogously:

6.13.3.3 SubscriberConfigurationType definition specifies a Variable "SubscriberAddress" with the following definition:

//The SubscriberAddress specifies the network address to be used for reception of NetworkMessages at the Subscriber of the information flow. This is an abstract type, and a concrete subtype shall be used. For the definition of NetworkAddressDataType, see OPC 10000-14.//

Problem: The name SubscriberAddress implies, that this is the address of the Subscriber, but it is quite the opposite, it is the address the Subscriber will be using to filter incoming NetworkMessages (e.g. to receive a Multicast message via IP, the Multicast IP of the NetworkMessage would have to be set in this field - in fact that address corresponds to what is currently called the PublisherAddress on the Publisher (or the PublishingAddress in the proposal)).
Proposal: Rename to SubscribingAddress.