Manual:$wgRCShowWatchingUsers

Recent changes, new pages, watchlist and history: $wgRCShowWatchingUsers
Show watching users in recent changes, watchlist and page history views.
Introduced in version:1.5.0
Removed in version:still in use
Allowed values:(boolean)
Default value:false

DetailsEdit

Show watching users in recent changes, watchlist and page history views. This is a user-preference option.