Incredibly, a primary such idea was censorship itself: those groups who partially defined themselves as absolutely opposed to banning socially intolerable ideas, are now the very same groups calling for vindictive suppression of socially intolerable ideas. Those who celebrated "banned books" are now demanding shutdown of websites (and sometimes even holding book burnings).
I absolutely hold that the Internet should be treated as "common carrier": IP registrars & networking should not address content, leaving those ideas & expressions to survive or dissolve on their own merit. Anything downright criminal should be addressed as criminal, with police handling the matter. Anglin is despicable; let us exercise our right to not associate with him, rather than deny him his right to freedom of the press (so long as he uses his own press).
I'm not debating the merit of any content, only that there is a right to express it (via your own "press") and to associate (or not) with those expressing it.
"First they came for the _____, but I was not a _____ ..."
"I do not support your opinion, but will defend to the death the right to express it."