I believe in the distinguishment between the warns of RDM and attRDM, regardless of them being the same punishment. The two have a difference in impression to other people. Attempted RDM is more likely to be stemmed from an accident, while (although still happens) RDM is a lot less likely to be accidental. From a definition stand point "RANDOM DEATH MATCH" means that it has to be a deathmatch. You know..... Meaning someone dies, faces death. Therefore RDM, cannot be possible unless, you know, SOMEONE DIES. You know what it is if someone gets shot but doesnt face death, special tv offer here....ATTEMPTED RDM. You don't not finish a sandwich and say you ate a sandwich. YOU SAY YOU ATTEMPTED TO EAT A SANDWICH, OR I TRIED TO FINISH A SANDWICH. To further increase my point, I've went to the only source that I can trust in this era of fake news, and that, my peers, is the Urban Dictionary.
https://www.urbandictionary.com/define.php?term=RDM
The solid definition states that RDM is achieved by randomly killing another player. Not just simply damaging him.
I know some of you stand by my viewpoint, and together we must actively fight against those who do things such as put milk before their cereal, put a sock on, followed by a shoe, and warn people who attempted RDM for RDM.