First: How can you (GRN) be hostile to someone you do not even know and who is shipping some good your people are mad about?
Second: The GRN has to be hostile toward the Junkers because they are spying on Gallia.
Third: There are no Zoner powertraders, in fact there is no more power trading at all. If you do not supply Zoner installations as Zoner trader you are just oorp. If you are transporting zoners supplies or somehow supporting your faction why are you jumping on them?
Forth: You are just jealous because you do not understand the zoner's way and why we are sexy because of it.