The list of valid KOS reasons does start by saying "here are a few" meaning not all valid KOS reasons are listed. It would be very problematic if we could only KOS players for those reasons as a player shoots you is not listed as a valid reason.

The list of valid KOS reasons does start by saying "here are a few" meaning not all valid KOS reasons are listed. It would be very problematic if we could only KOS players for those reasons as a player shoots you is not listed as a valid reason.