User blog comment:Lasaro Ginjou/The Logia Issue/@comment-3387274-20180124130337

I don't disagree with what you're saying, and I don't think there's many people here that do. Like Wyv said, we've had issues with not being entirely sure what defines a force of nature and how distinctive they have to be from one another. And on top of that some things kinda got established before we really thought about rules, and nobody wanted to mass delete everything that wasn't compliant, although it was talked about a few times.

The really big issue here is weighing up what is true to canon, and what is fair and fun. I have the Calcium fruit for one of my characters. It would be truer to canon to make it a general metal fruit (much like the Gasu Gasu no Mi is a general gas fruit), and I'd have fun with that, but where would that leave the mercury or gold fruits, or indeed anyone else who made a power for a specific metal? If I win they lose, or the other way round.

And of course, there have been dozens of people on this wiki in the past. The one example I gave is one hypothetical situation out of hundreds more.

We wanted every fruit to be unique, but then being general with things like elements would result in them all being used up very quickly, and not enough left to go round later on. That wouldn't have been fair on anyone who missed the rush early on, and the wiki would never have grown beyond its earliest years and first users that way. And that's assuiming we don't get a case like the Yuki Yuki no Mi, where a general fruit appears in canon and so rules out something we've already done.

Our established system isn't accurate to OP, as you said, because it's not entirely intended to be. It's the best compromise we could come up with between staying true to canon and allowing everyone a fair chance at making logia powers and having fun with them, rather than forcing out every single newcomer. That, I think you'll agree, is an important thing to keep in mind.