I’ve noticed that more and more people have been dropping the apostrophe in the word you’re and have instead been using your. For instance, “They think your dumb for saying that.”
The linguistics class I took last semester taught me not to place value judgements on the ways people speak. Plus, language, like most things, tends to evolve to better serve the convenience and efficiency of those who use it. So I’m not necessarily knocking it. This sort of thing happens to homophones quite often. Simply noticing and mentioning it because before now, I hadn’t really seen it done. Besides, as long as the point gets across, communication is successful.
