In case you haven't seen that topic in KO official forums.
The 2 WeAreSoSorry players party a NP transferer, while they go and hide somewhere. They gain the NP the NP transferer is getting and think it will go unnoticed.
It starts to get suspicious when you see them having no kills but they are close to 800 NP gain.
So go and bump the topic, Me personally I don't like any of them...so I hope their clan gets disbanded and those 2 players banned.