But you call Call of Duty a First Person Shooter and Gears of War a Third Person Shooter. The names might be poorly chosen but they're so named purely because the JRPG genre popularised in Japan and the WRPG genre popularised in the west. But they're two distinct genres. Final Fantasy is a JRPG and Dark Souls is, as far as I'm concerned, a WRPG. The two games are nothing alike.
That's really an apples an oranges comparison. Keep in mind that games with a first person perspective can have a third person perspective. Even an RPG like Sudeki gives you that option.
If you're looking for a game in the same vein as Final Fantasy you'd be like "Yo, recommend me a JRPG". If the two words were to disappear you'd ask for RPG recommendations hoping for things like Persona and instead have games like Gothic thrown at you. It's an important distinction to make.
Would you, though? Final Fantasy is a poor example and that example is a silly way to ask for a game recommendation. Final Fantasy has gone through so many changes; if someone wanted a game like Final Fantasy then they might as well ask for a food that has carbs. There are so many options. If they wanted a game like a specific entry in the Final Fantasy franchise, that would be more realistic.
You have to keep in mind that in this modern era, you have videos, screenshots, reviews, blogs, podcasts, and more to help you determine whether or not a game would be enjoyable.
But I love JRPGs for the same reasons everyone else who loves JRPGs loves them and if everyone stopped using the name then it would be incredibly hard to find them. The fact that everyone knows (well, most people) what you're referring to when you refer to JRPGs speaks for itself.
Again, it sounds like you're not giving people enough credit. I'll give a personal example.
During the SNES era, a friend of mine asked me whether or not like I liked RPGs. I didn't know what an RPG was, so he mentioned Final Fantasy II (IV). That was all it took. Later that day we were hanging out and we played Might and Magic on his PC.
That was enough for me to understand the RPG concept. There was no need to attach any extra lettering to them.
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I'm not going to try to change anyone's opinions. This is why we're posting our opinions in the "unpopular gaming opinions" thread. There's no J or W or any other letter that needs to go before the RPG acronym.