Wikipedia's entry on French composer Hector Berlioz contains a footnote (note 16) to support the statement that Berlioz's parents "disapproved" of his abandonment of medical studies in favor of music.
The footnote link takes the reader to a Wayback Machine-archived page on Berlioz from Karadar.it, a quasi-encyclopedic entry with no sources given.
What is Karadar.it? A website formerly run by the Karadar Bertoldi Ensemble, a piano and violin duo based in Italy. A bio of the violinist, Sibylle Karadar, appears on another site.
At least one critic satirically complained that Karadar.it was scraping content on classical music from all over the web and passing it off as original. See Brief Outline of How to Steal, by Karadar
Karadar.it eventually migrated content to Karadar.com. Karadar.it is now a parked domain with a fake blog in Italian; Karadar.com is a portal page for people interested in auto accessories ("car radar" -- get it?).