IVs/DVs have never been hinted in any game up till Emerald. So every person trying to get good IVs on a Pokémon before Emerald was released was cheating?
Ever talked with every NPC in the game? There's been that one line about "Pokémon of the same species having different capabilities" since
Red/Blue. Hell, it was one of Blaine's Gym Quizzes.
Regardless of vagueness, it's been hinted at since the first games.
I don't think it has ever been mentioned in any of the games that chaining increases the chances of shiny Pokémon. So every person that obtained a shiny through chaining should just release all of them as it they've been obtained through cheating? Should all the shiny Pokémon obtained through the Masuda method before Masuda mentioned it be marked as illegit? The people couldn't possibly have known about this method at the time, so it was obviously cheating.
Yes. Lucas/Dawn tell you what the Poké Radar can do. They even give you a small lead in how to get there. I wonder why people
expect the game to explain every little mechanic in-depth. lol
Also, way to miss the point. People can cheat for all I care. Hell, I abused the Missingno. glitch in Blue, and the duplication glitches in Gold and Emerald. However, unlike some people here, I don't justify myself and say it isn't cheating just because I'm not using an external cheat device. I know it is cheating and I completely accept it, unlike RNG manipulators, who go as far as calling it a game mechanic in the level of EVs.
Ever since the third gen people have been complaining about IV breeding and EV training, claiming it to be abusing an in-game feature that wasn't meant to be used in this way. But lo and behold! Masuda himself has directly stated that IVs and EVs were purposely put into the game to give it an extra layer of competitive depth for the more advanced players to enjoy. EVs and IVs were put in the game with the purpose of being abused. It is impossible to know what the developers had originally intended or even if they disapprove of the "abuse". It is impossible to know if it even is abuse, so don't go around claiming it as fact.
Until the game makes even a vague reference to RNG manipulation (As I said before, some NPC saying that using certain Pokétch Apps a lot might make awesome things happen), or until the developers come out and vaguely hint at certain actions that can modify the outcome of things... yes, it is abuse.
IVs and EVs are acknowledged in game, and the developers claimed that their inner works were meant to be used in more advanced ways. On the other hand, RNG manipulation is cracking into the game's inner works, finding a way to mold it through in-game means, and abuse it at your leisure to get results. It's a lot like abusing a glitch, but instead, you're going to lengths to trick the game into doing what you want it to do. Oh, and it's never mentioned in any way, shape or form by the game or the official sources.
IVs and EVs are mechanics made to exist within the game world. A Random Number Generator is a system resource to manage random calculations and a lot of other inner works where a randomizer is crucial. It's
not the same in any way, shape, or form.