I think we are starting to see that free-speech has a tendancy to destroy itself, in the same way that free-markets do.

True free speech will end up in a system being exploited by those who can make the most noise the most often. True free markets tend to end up as a series of oligopolies.

Small amounts of regulation can help both systems do better, but we need to find a way to reliably regulate regulation (as regulation also has a tendancy to destroy itself).