There is no place for humor or overly subjective terms like "evil" in a software license or other legal document, and the problem with Douglas Crockford's license is that he fails to understand that.

That is, unless his intent is to keep every entity with sane lawyers from using his software. I don't think that's his intent. He said he wants to keep people without a sense of humor from using his software, but sane lawyers with a good sense of humor will object to the license just as strongly as sane lawyers with no sense of humor.

Venue matters. A lawsuit based on the evil clause of the license, in San Francisco or Los Angeles, would probably go nowhere. However, consider a jury in Birmingham, AL, and whether they would find that using some of Crockford's software in an abortion clinic was a violation of the license.