Eben Moglen, the law professor and open-source legal expert who has helped lead the revision of the General Public License, is predicting broad success for the upcoming new version.
"It means a situation in which somebody accuses someone else of a fault which the accuser shares, and therefore is an example of psychological projection, or hypocrisy. Use of the expression to discredit or deflect a claim of wrongdoing by attacking the originator of the claim for their own similar behaviour (rather than acknowledging the guilt of both) is the tu quoque logical fallacy."
