There is no definition of free speech, it's an interpretation issue like everything else. You can be intolerable while you "speak freely" and intolerable while

There is no definition of free speech, it's an interpretation issue like everything else. You can be intolerable while you "speak freely" and intolerable while you stop people from doing the same. You can be intolerable for not speaking at all. We don't even have a static definition for the individual words speech or free. It's important to understand that much of society is an attempt to tolerate each other and the concept of "free speech" is just a constantly moving bar of tolerance. Each individual has their own bar and each jurisdiction has one too. XKCD is just as wrong as anyone else and as long as he's not giving legal advice any contrasting opinion you have about it is just a contrasting opinion.