There are limits to free speech, something many internet dwellers never seem to grasp. Some of them are ideological, ie. you can say whatever you like until you interfere with other civil rights, like insulting someone's mum. And some of them are, well, practical... like if you insulted my mum, you'd find a fist firmly planted into your face with astonishing force. You can complain that I'm restricting your free speech, that's fine. But that's not going to change the causal effect your free speech has on the redecoration of your nose.