One thing I learned by watching US culture warfare in recent years, is any value have a limit to it. If it has been codified or been treated as absolute and untouchable, then it becomes its own weakness.

So does free speech. Certain speech that are known to cause violent result/response from its audience should be dealt with carefully. In which case, if 8chan has popularized itself as the platform to announce when and where to kill innocent people, and broadcast such message to its susceptible audience to follow, then to me it feels like indifference or dysfunction of a community to have it slip through under the umbrella of 'free speech'.

When you know you are ill, just take medication, not just set in vain to wait for your immune system to ultimately cure yourself.