User blog comment:Miskos3/Fairy Tail Episode 234: Tartarus arc Prologue: The Nine Demon Gates, Review/@comment-24784846-20150523143043/@comment-7418318-20150524220119

I'm not suggesting that the wikia should yield to my tastes. But nobody can stop me from using those names for myself, just as nobody could stop me from prefering Sharulu over Carla, Charle, Charles or whatever.

And it's not like people will suddenly no longer know who I mean when I write Keith, Sayla or Torafusa, so it won't be a problem... not unless someone tries to force me to use the "official" names, which I doubt anyone will.