Shut the fuck up about grammar. Especially shut the fuck up about “they’re,” “their” and “there” and “you’re” and “your.” And especially especially shut the fuck up about textspeak. We lost that battle. As a society, we lost the fight; in the future, we are all going to be using “r” for “are” and “u” for “you” and generally constructing sentences as though we were building a custom license plate.
Shut the fuck up in a general sense with grammar prescriptivism, because: the people who you think need your message most are never, ever going to listen to you. You are pushing Zionism to a guy wearing an explosive vest. You are pitching a Palestinian homeland to a guy who can’t turn the lights on on Saturdays and won’t touch a strange woman just in case she’s menstruating. You are never going to make even one iota of headway and there is nothing more irritating on Earth than a self-appointed copy editor.