Just because a word is used in an opinion piece, blog, article, or letter to the editor does not mean it needs to be cited as an example.  All of the examples are there because of their political point of view.  They are completely subjective and inappropriate to the page.  All of them should be removed.  I'll go over a couple of them.

"Character assassination is the Karl Rove tactic of choice, eagerly mimicked by his media surrogates, whenever the White House is confronted by a critic who challenges it on matters of war. The Swift Boating is especially vicious if the critic has more battle scars than a president who connived to serve stateside and a vice president who had "other priorities" during Vietnam." –Frank Rich in the August 21, 2005 New York Times[3]

This is purely about Karl Rove, and the opinion writers thoughts on Karl Rove's tactics.  It  offers no meaning or insight to swiftboating.

"Swiftboating Cindy Sheehan"[6]
"Swiftboating the Crazies"[8]
"Swiftboating again"[9]
"Dean is being swiftboated."[10]
"I do think the race offered one good opportunity for out-of-state Dems and Progressives, and that was to calmly write to newspapers and try to talk to receptive radio hosts about the swiftboating of the candidate."[11]
"I’m glad the efforts to swiftboat Paul Hackett have been exposed for what they are."[12]

These are all blog entries which may or may not contain the word swiftboating.  They serve no purpose other than to push a political agenda.

Swiftboat ('swift bOt); transitive verb: (1) To accuse a public figure of questionable conduct without the benefit of physical evidence, usually by an entity informally associated with a person or entity benefiting from the accusation. Noun: (2) An unsubstantiated charge made against a public figure or organization, usually made by a proxy entity. See also: Smear, hatchet job, character assassination. (3) An organization dedicated to swiftboating on behalf of a respectable organization. (4) archaic: a type of boat used by the United States Navy to patrol the shores of Vietnam from 1965 to 1970; see also PCF. [14]

This comes from some password protected forum.  Seeing the word is defined above, I see no reason for it.