Kgirl feuds. Most do not escalate to anything near the example of all-out war you describe in your second and third paragraph. This kind of scorched-earth retaliation is rare in my experience, and I have seen over 1000 Kgirls.
Where these feuds usually start is when a Kgirl starts trying to poach her roommate's regulars. As you are arriving or leaving, they will leave a door open, or be sitting on the sofa in the living room with little or nothing on, pretending to read a book or looking at their phone. As you are standing by the door saying your goodbyes to the girls you saw, they will walk past you into the kitchen with only their panties on, tits swaying with each step. I even had one that went to the window topless as I was going to my car, knocked on the window to get my attention and then waved at me in the parking lot. After a few days of this, the first girl will mention it to her booker, and will move to another apartment with a new roommate who is not so aggressive in trying to take her customers. That usually quiets things down, but if the aggressive girl succeeded in poaching some regulars, it turns into an ongoing feud that can last years.
Ironically, the top girls who have a long list of regulars don't seem to care and are actually helpful in getting customers for their NEWER roommates. On several occasions, as I was leaving a session with a regular, she would take me out into the common room, and there would be her roommate standing there in sexy lingerie. I would be introduced, and then the roommate would drop to her knees, unzip my fly and take my dick into her mouth for a preview. After she bent my hardening dick in half to stuff it back in my pants (not nearly the pleasant experience that taking it out was) the two girls would ask me if I would book a double with both of them next time. In some cases I did, in others, I would wait and book the roommate after she had gone to another location.
Consequently, the feuding and fierce competition seems to be concentrated in the girls that are not quite top tier. The top girls are not hurting for business, and some of them are not even accepting new customers at certain times when they are fully booked every day.
I have not personally experienced any retaliation or aggression on the part of bookers, but I'm in SoCal where there always seems to be enough business for everyone if you stick with the longer-term orgs. I did have one booker tell me he would not give me a reference to another booker/org to see a girl I wanted to see there, but then I asked him would he rather see me book with a girl at a different org in order to get a reference to this org . . . . "That's two sessions your girls won't get instead of one." He thought for a minute and then gave me the ref. Lol