There seems to be a bug which creates strange entries in the article history. Please take a look at http://de.wikipedia.org/w/wiki.phtml?title=Wikipedia:Ich_brauche_Hilfe&a... or http://de.wikipedia.org/w/wiki.phtml?title=Benutzer_Diskussion:Kurt_Jansson&...

There are entries created by "Benutzer:" or "Spezial:Contributions", but the users were logged in.

And BTW, the new edit&section=new feature creates double entries if the new text contains a heading.

Kurt