I'm certainly happy for KNF to blow up traders and whatnots, but now that I know more about various Kusari groups, I think it should be KNF (or Samura) ships doing this, as opposed to nationalist xenophobes. I can see Hogosha doing illegal dealings in the Taus, but extorting all sorts, Kusari and foreigner alike. They're supposed to be a very corrupting influence. If they were demanding 'protection money', I'd think it was cool.
Hey, I think they should all join KNF because, you know, they need it.