This would be a big one and an important one for me. I think that in all things one should strive to be correct. Misinformation is a terrible thing to find in a shrine and I try to shy away from it. The information on Beautiful Dreamer should be free of most errors, but I am human and I do occasionally make mistakes (I know, you're shocked). Still, outside of some small errors here and there that we're constantly finding and correcting, you can trust the information you get from us.
However, I think there's such a thing as going too far. Honestly, to black ball certain people and denounce their information as "incorrect" just because they differ from you on their chosen spelling has very much gone far away from the spirit of Sailormoon. I have been a member of the Sailormoon fan community for some years and I am proud to say that. I see nothing wrong with using the terms "Inner Senshi" and "Outer Senshi." I could honestly care less whether or not Naoko herself coined the terms or not. The important thing is that the reader herself knows exactly who I'm talking about when I say that. Beautiful Dreamer is not a site devoted to pointing out what is accepted fan terminology and what is the gospel truth of Sailormoon terminology. If you're honestly interested in that, then you're going to have to go some place else to find it.
So yes, I will use "Asteroid Senshi" interchangably with "Sailor Quartet" and "Chibimoon's court" even though they are never called the first term or the last term officially in the manga. People will know who I'm talking about because the four of them are named after the four largest asteroids in the asteroid belt and are Chibimoon's soldiers. The fact that you know who I'm talking about is the only thing that matters to me. Frankly, typing "The Sailor Quartteto did this" and "The Sailor Quartetto did that" over and over is kind of boring.
I chose to use the spellings "Elios" and "Neherenia" because that's how they sound when spoken. I honestly do not care what your position is on the "Is Elios based on the Greek Helios?" question at all. I love Elios as a character, and whenever Chibiusa chirps his name, it sure sounds like "Elios" and not "Helios" and that's enough for me. I'm not trying to tell you that you shouldn't use the name "Helios." If you want to do that, do so and go with god. I'll still know who you're talking about and we'll get along fine. Just don't try to tell me I'm wrong for using "Elios" and we're peachy.
The same is true with my use of some terms. I use "Starseed," "Brilliant Starseed," and "Sailor Crystal" interchangeably when I'm discussing them. I call the final form that the inner and outer senshi attain the "Star form" based on the star ornamentation all over everyone and as homage back to one of the original manga Chibiusa sites out there "Bells For Her" which first pointed the form out for me, as I had yet to make my journey to Paris to buy the last three volumes of the manga in French. Bells For Her identified it as "Sailor Star Chibimoon" and most people recognize the form as such. If we hadn't named it, we could always call it "Chibimoon's fuku with all the stars on it" but that's a little ham-handed, don't you think?
In the end, my bottom line here is that if you have some beef with the way I spell something or romanize someone's name, then take it somewhere else. I honestly don't care. It's important to be correct, but there's such a thing as being too correct, especially when you're smarmy and lord it over people. I don't have the time or the energy to get into a pointless semantic debate over something like this. I love Chibimoon and I am more than certain that she would not approve.
In the end, I'd just like everyone to get along. Don't get into my business and I won't get into yours. In the immortal words of Hank Williams, "If you mind your own business, then you won't be minding mine." If you do get into mine, I will ignore you, so be forewarned.