Less information is bad, shutting down debates is bad, spinning information is bad. While both sides can be accused of spinning, it's the left that actively trys to shut down free speech and the dissemination of information. This quote from Robert Greenwald, one of the activist organizers that successfully shut down the debate, I think speaks for itself.
"The more Democrats legitimize Fox as a neutral or credible source of news, the easier it is for Fox to swiftboat Democratic candidates and progressive ideas in the future -- elevating smears and misinformation into the mass media during the 2008 election," it says.
The Left attempts to shut down opposition by attacking the opposing messengers rather than defending their position. Try to avoid the facts because that tends to confuse their opinions.