Clarification on the term "Traffic Participant" for Visibility Action

In an attempt to include the concept of exchanging visibility options, the colleagues at the OSI group are considering the addition of an OSI message which enables a visibility action to be communicated to an entity. In this process confusion arose surrounding the concept of traffic participant. It seems to have a different meaning in OSI, and we should probably attempt to clarify this from OSC side.

Do we use the term traffic participant somewhere else? If so, where? Is it properly described? Maybe we can replace it with something more "OSClike"?