I think the real problem that is totally overlooked is the whole authoritarian nature of this paternalism of monitoring people as to their "offensiveness". It's pure and unadulterated authoritarianism and controlling to declare yourself as the moral arbiter of what is and isn't offensive and what should and shouldn't be allowed. And no, it's not a matter of whether you CAN legally do so, it's a matter of whether you SHOULD be an authoritarian dictator.
How about giving people a choice instead of playing Little Lord Fauntleroy and controlling everyone's actions. How about just giving users the option to block "offensive" or even just possibly "offensive" names and terms and words, instead of going all paternalistic jerk.
It is something that has bothered me for a long while now, especially in places like Reddit, where the whole fundamental concept of the site was totally and utterly undermined by the authoritarian mod squad that makes the whole community voting/self-regulation a facade when it's not being used by the angry mob to metaphorically burn the witch that dared to say something that wasn't their favorite thing to hear.