Silencing extreme views, even if they are those of internet trolls, is wrong

Internet trolls are among the worst specimens the human race can offer. But they are not a reason to nod through another restriction on personal freedomNo one has tested my commitment to liberalism so sorely as Edinburgh University’s Feminist Society. I know I should believe in freedom of speech and changing minds with arguments, not punishments, and all the rest of it. And, trust me, I do. Or rather I did, until the moment Edinburgh’s feminist students said they wanted to kick the Socialist Workers party out of their campus.The BNP of the left has had a malign influence on public life far beyond its numbers. In the universities, it has been at the forefront of thuggish demands that there must be “no platform” for fascists or supporters of Israel or, it seems, anyone else it disagrees with. The desire to censor has reached the absurd state where the academic left has banned women’s rights campaigners, who have upset transsexuals, and admirers of Friedrich Nietzsche, who have upset students who had not read him but know he was a bad person.
http://www.theguardian.com/commentisfree/2014/oct/26/banning-peoples-views-even-internet-trolls-is-wrong