As someone who learnt english as a second language, I find it very ironic how I know it doesn't make any sense, but native speakers just don't. I read it and was like "wait, that doesn't make any sense", and had to look it up to confirm it, because the person was a native speaker so no way that i immidiatelly notice it, but they type it like nothing's wrong. The difference is that native speakers learn the language from hearing it, while people like me learn it from books, designed for correct grammar. The word "would've" sounds like "would of", and native speakers confuse it at a young age, and probably grow up with it nobody telling them that they are wrong. This is not the first case when ignorant people change the meaning of a word, and expect me to just change it in my head too, and I am the one who gets talked down for pointing it out. All it would take for them is to take one look and realise that that's not what "of" means, but some people are just too stubborn or lazy. Every time I read it i hear "Oh, you spent 10 years learning our language? Well, too bad! See this word right here? You know what it means, don't you? You've studied it for 10 years after all! You might as well throw that knowledge out of the window (or should I say "out HAVE the window"?), because it has a completely different meaning now! You see, we can just change the language and you can't do anything about it. We are the majority, and we are the native speakers. Grammar doesn't exist anymore. We are the grammar!". All the effort I put into learning grammar and it doesn't mean anything, because people can just get away without studying grammar at all. It's easy to use the excuse that the language is naturally changing, but it isn't. It isn't changing untill it is changing in grammar books. In my experience, if your english is "native speaker" level, it would mean that you can speak fluently, but your grammar is horrible. This also makes every native speaker look bad in general.