player actions
Giga_M

shows the actions of a player

Voxelforge /sit and lay commands
VoxelForge

Sit and lay using chat commands

Block / Unblock users
jesuistitus

The "Block / Unblock users" allows players to block and unblock messages from other players in the chat.

Simple Replace Plus
Aeonovyli

Simple area fill mod with commands /pos1, /pos2, /setnode, /fill and /delete. Created with help from AI.

Time and Date Stamps
Bob64

This mod overrides the default chat format so that it also contains the date and time that the message was sent.

PlayerInfo
niwla23

Players can set their info and others can see it