I'm a native English speaker, and I never came across such a thing. Often, such adjective mistakes are simply corrected because 'it sounds funny'. I took advanced courses in English and school, and as a weird result, missed out on much of the sentence labeling and other such things. I'm also learning a language. I moved to Norway a couple years ago and am in the second year of classes. Rules, even when they are loose, help a lot as an adult learner because the rules give me something to lean on to make guesses. I'm just now starting to get a feel for what 'sounds' right, but thanks to the rules, I can bypass that for now and use the language skills I have and make do.