Censor work on a word by word basis.

The word "yourself" certainly shouldn't be censored

As for "kill"... this is a combat game, it's a very useful word for telling your team mate what to go after etc so that word itself also need to be allowed.

Anything beyond word level would make the system much more complex, either compilation of all questionable phrase or an AI doing lexicographical *ysis.

So in the end, this is unlikely to change. Because things don't work "by magic".

But you can report him here:

https://forum-narutoen.oasgames.com/page/show-post-22193-1.html

And maybe he'd be banned so...