Remember that libel is not solely based on untruth. The writer has to know it is untrue, otherwise it's opinion. And the writer has to have "malicious intent" in making the statements. And it cannot be construed by anyone as fiction or opinion, for which anything goes. It's called freedom of speech.
Very, very few libel cases occur anymore. Use the above truths to understand why. First defense: I thought it was true. Second defense: I'm just putting out the warnings, no maliciousness intended.
If you bring a libel charge, you better be able to prove the writer knew the falsehold (how can you get in his mind?) and that he meant his words to cause serious damage.
Libel (written) and slander (spoken) cases are almost historical relics today. Witness the crap spouted daily on talk radio and cable TV. The emergence of the blog is the final hoorah of "anyone goes" untruths masked as free speech under the Second Amendment.
Rant on, brother. Rant on.
Just using those 2 arguments... it's really that easy? Awesome...I'm off to start crafting a John Banzhaf is an ignorant agent of satan website because I think it's true and just want to warn people about him and his evil cult