look, to kill someone u need IRCops status, i dont know which Flags other server uses
but on Unreal its Flag +o

so, if u active Kill on, then u're connected on another network that you're not IRCop, this will not kill, so, a good solution for this:

1- set the network, so this will only work on specified networks
2- use something to check if +o flag its on usermode

if (O isincs $usermode) { command }