Thread:Project:Support desk/Preventing Spammy User Accounts/reply

It seems you have activated the enhanced recent changes where logs about operations (like creating user account) are grouped. The square bracket only contains the list of all created users for the same day. In the example you gave, Darren is separated because it's another day.

You can deactivate the enhanced recent changes in Special:Preferences#mw-prefsection-rc by unchecking the option and saving your preferences.