Same thing happens with "y'all", even though it's nowhere close to being as esoteric/regional. A couple years ago, Twitter seemed to have become obsessed with incorporating it conspicuously into every other tweet. I didn't even know "y'all" had rules until that happened. (I couldn't really tell you what those rules are, but it was popping up in places that were so syntactically awkward, by people who were clearly not "y'all" natives. So they definitely exist.)