- by number of edits
- by number of minor edits
- by number of reverts
- by number of page creations
- by number of media uploads (or media additions to articles?)
- by percentile change size
- by number of edits to an unusual namespace (portal, book, wikiproject)
- by marathon (time editing at least once per time window)
- New user ("A star is born")
- Awarded first barnstar/thanked first user
- Nth all-time edit (1st, 5th, 10th, 20th, 50th, 100th, ...)
- Became an active editor (5 edits in the last month)
- Wikipedia birthday
- Prolific unregistered user
- Created new (large?) page
- Creating a User Talk page = welcoming (look for warning in comment though)
- Collaboration (two editors on a same article, without revert)
- Return from hiatus (usercontribs)
- Section editor?
- Big talker (lots of Talk/User talk namespace edits)
- Move, delete
- Marathon editor (longest time editing at least once per <timespan>)
- Creating a User Talk page = welcoming (look for warning in comment though)
- Nth edit for the day/week/month (proportion of total edits in the last month?)