Editing Help:User contributions (section)

===First edit===
When using the user contributions page to determine when a user started editing on a wiki, note that edits may have been made on another wiki, where later the page has been [[help:import|imported]].

Also, until ca. 2004 there was a bug, which has been fixed but not retroactively, as follows:

{{blockquote|If a moved page was moved back, the edit history of the page with the intermediate title shows the latest move only, with the corresponding user name, but with the date and time of the first move.}}

Therefore, if the oldest entries in the user contributions list are moves, they most likely do not represent any activity of the user on the stated dates.