Rule interpretation question..

[LevinJ]

Not intended as a rant, but this happened today and I want to know how the rules would handle this...

I enter SRO, find AC PH walking around the zone at night, kill it. Then get grief tossed at me for KSing from guy who claims he is camping the AC. My anonymous friend explains to me that the trick to making the AC spawn is to leave the PH up overnight. Basically, he tells me he is camping AC but not killing PH (or any other mobs) because that is his theory of how it spawns.

So I know that a camp is only yours if you are killing the mobs. And I know AC does require PHs to be killed to spawn. So my question is, by the rules did he have right to the camp based on his flawed strategy where he was sitting in the right spot but not actually killing PH or anything else?