You get bounties for killing enemies of the faction only if the friendly faction has a station or planet in system offering a bounty, just like Vanilla. That's not counting assassination bounties.
Ok, I'm not sure if it's Nexerlin or vanilla or Mayorate mod or me going crazy but I plainly don't get the unprovoked attack penalty mechincs (feel free to RFM me with a link). When I attacked a bounty, I had reputation loss for Mayorate and Tri Tacheyon which had holdings in the same system I assume. I thought they are allied/ friendly with pirates so maybe fair enough.
Now I followed a bounty called by the _Mayorate_ because of pirate activity in a system and I saw that they had switched the standing towards pirates to hostile (also saw fleets of them intercepting pirates) so I went to the bounty system, attacked a pirate and still got a relation loss with the _Mayorate_ for an unprovoked attack although they put out a bounty to attack pirates. The bounty also was only 2 weeks old and still active but I didn't get anything from the Mayorate, just bad rep. Does one need to goad bounties to attack themselves?
Not sure if the Mayorate mod hardcodes some pirate affiliation or Is there also a region around a planet where it is valid only and I was too far out but that's essentially what gets me mightily confused because it doesn't feel like Vanilla mechanics at all. Tried out hegemony and they seemingly don't have such problems, they put out a bounty, I went there, killed bounty, got money and reputation gain, the way I expected...
I really like what the mod does but I'm not quite getting what's going on there, hence my inquiries. I had random relations at start, can that cause some weirdness?