If you are playing "evil" I can guarantee it still happens if you run into me... and in fairness to Freja and the Dark Outlaws, if they PK you, they do so in rp fashion and for rp reasons.... ie the Queen of Outlaws requires blood from her victims (and also for this reason - doesn't loot you or if so lightly).
So although she might be broadly defending PK's that don't fit this mold, and whom I agree don't deserve it, she and TDO are the "good" type of evil that encourages interaction both dialog and combat.
-Lore
You probably understand I am fine with pks of any stripe, as obviously I have played siege for nearly 2 decades, and I was a thief a good portion of that time, which creates a similar kind of interaction. I think RP pks are great, especially the ones that really make an effort, despite being very rare no a days, but even the "good" pks are still evil, and in reciprocal RP fashion should not be treated kindly. I think that too often the PK see it from their point of view, of "making the game more interesting" and despite the fact that if you get PKed you have at least tacitly agreed to the possibility of such an interaction, it's entertaining yet disruptive at best, and downright toxic at worst.
Of course I simply think the game functions better
with pks, than without. They keep the gold/item faucet in check, and help create demand for gear. Without them people farm 24/7, even automated, and inflation skyrockets, resources and other treasures become devalued at a much higher rate.
So even if it's usually an annoyance to get pked, the economic pluses outweigh such annoyance.
In closing, as I have had issues with angry pks before, if you are a pk, you are the one interjecting yourself into another person's day, you are
choosing to be a bad guy here, and you should not expect people to like it, or treat you with kindness, or be surprised or hurt when they don't, even in cases where you are RPing. People don't like to get killed, even if it's by a band of outlaws, or a cursed werewolf racked by grief at their own actions...