So this guy named fiefoe and sober manic depressive dog at the start of every round are saying KOS AVANIC! and they do kill me. Most of the time they are innocent. I am also innocent. Can I report this or are they just fooling around?
If this is after Pre-round and they are in-fact innocent and you haven't commited any T act, then it is most certainly RDM and you should report it on the forums or in game with video evidence or screenshots.
You can report this, and they will be slain. This is simply something called calling a "false KOS." Where I call you out, with no reason to. That is the same thing as me killing you, without reason. Both problems will lead to slays. So yes, this is reportable. But if you are reporting on the forums, and they are Mic KOS's, make sure you have recording of it please.