As someone else already mentioned, we are on an English website, so the one language we all have a shared understanding of sorts is with the English language.
Instead of trying to force the use of Netorare, Netorase, and Netori; Cuckold/Cuckquean (Homewrecking), Swinging (Sharing) and Cheating (MC-cheating) would do.
I will go on a limb here and say a lot of users probably didn't know what NTR was or the differences between Netorare, Netori, and Netorase. Hell, I didn't know the differences and NTR wasn't a new concept to me. A lot of people are learning these terms for the 1st time and they are probably still confused because there is a lot of back and forth they are learning from here (and other places online) that's impacted by our interpretations that exist because we don't understand the language or the meaning behind the characters used to in Japanese writing. The truth is that most of us that think we know probably don't because each of those words has a meaning that is derived from the meaning of the characters used to create the word. That's the reason why there are multiple interpretations among us.