Making up quotes is one thing, making up something from a source the previous edits of which are freely available quite another:

http://www.pcc.org.uk/case/resolved.html?article=NTE4MA==

Complainant Name:
Ms Peaches Geldof

Clauses Noted: 1

Publication: Daily Star

Complaint:

Ms Peaches Geldof complained, through Swan Turton solicitors, that the newspaper inaccurately alleged that her Wikipedia page had been amended to claim that she was a transsexual, and that she had reacted to this by angrily emailing her friends.

Resolution:

The complaint was resolved when the newspaper published the following apology:

“On March 28 we published an article with the headline, “I’M NOT A TRANNY (AND I’M CERTAINLY NOT HUNG LIKE A DONKEY) SAYS PEACHES”. The article alleged that there had been an update for Peaches Geldof on her online encyclopaedia Wikipedia entry claiming that she was a transsexual, and that she had responded by sending out angry messages to friends to deny the story. We now accept that there was neither any such entry on Wikipedia, and nor was there any of the hysterical reaction by Peaches to the entry as described in the articles. We apologise to Peaches for any distress that the article caused”.