One possible take is that there's a fundamental difference between banning opinions and banning presentation. You could ban spam, impersonations, doxxing, all h

One possible take is that there's a fundamental difference between banning opinions and banning presentation. You could ban spam, impersonations, doxxing, all harassment and insults, posting fecal matter, porn, racial and other epithets, and so forth, but still be able to discuss the related crazy ideas (holocaust denial, child porn legalization, etc). I think this preserves the most important part of free speech.