How is "area traffic" different from "traffic"?????#$%

We have a local area that I fly into that makes sense to use "area" traffic.
There are 3 airfields within a 3 mile line East to West. The middle one is
a public use grass strip (Eagleville) and the two others (one is named T-Top
and each are ~1 mile away from the center one) are private, but often used
strips.

They all show 122.8 as their CTAF (if it's published). A wide pattern at
any of the fields will intersect with the other, so most people use the
public use name + area "Eagleville area traffic, C12345 entering left
downwind runway 19, T-Top"