Orlowski often criticized Wikipedia.

Several other publications commented on the incident, often criticizing Wikipedia and its open editing model as unreliable, citing the Seigenthaler incident as evidence.

In March 2009, Klein criticized Wikipedia for what he described as preferential treatment of Barack Obama coverage.

The family of Agatha Christie has criticised Wikipedia for revealing the ending of The Mousetrap, the world's longest running play.

"As Wikipedia has tried to improve its quality, it's beginning to look more and more like an editorial structure," said Nicholas Carr, a technology writer who recently criticized Wikipedia on his blog.

Matthew Prichard, the grandson of Agatha Christie, criticized Wikipedia for giving away spoilers in the play "The Mousetrap".

He also took the opportunity to criticize Wikipedia, saying that "only a primitive would believe a word of" it.

Academics have also criticized Wikipedia for its perceived failure as a reliable source, and because Wikipedia editors may not have degrees or other credentials generally recognized in academia.

Two weeks after the launch of Citizendium, Sanger criticized Wikipedia, describing the latter as "broken beyond repair."

Agatha Christie's family has criticized Wikipedia for giving away the ending of "The Mousetrap."