I was fired on and nearly destroyed by Joe.Random the mercenary the other day and his friend. The Banjos were in the area. As long as I am not being attacked or pirated, I don't care who is flying near me. If the Banjos don't pirate me or attack my operations I consider them allies. The mercenaries working for DHC are a bigger pirate threat to me then pirates themselves.
It seems you have greater concern for who I associate with, then correcting this issue. I fly and mine for Kruger, I do so in the Kruger field in the north. Your business partners have no business there and no business with me. So mind your own business is what I suggest, and I repeat correct the issue with my operations being attacked by YOUR mercenaries.