Current user contribution page only shows detailed log for users' contributions sorted
It would be better to provide more flexible and summarized views for users to see what
he/she did for a day, for a week, for a month, for a topic, etc.
And I don't know why people cannot view others' contributions in mediaWiki. In a
research group, the supervisors should have the right to view group member's
contributions to know what a person did during a period. The same goal may be achieved
by add and enhance the search function in Recent changes page.