If that player is making comments that are insulting or offensive to specific individuals or groups (including races, ethnicities, regions, religions, or organisations), please contact a GM immediately.

If you wish to block out a certain player's comments, you may use the blacklist command.
First, search for the player to confirm that they are in the same area as you. Then, use the "/blacklist add (player name)" command to place them on your blacklist. Once you have finished, use the "/blacklist" command to view your blacklist and ensure that it is correct.

You can type "/blacklist delete (character name)" to remove that player character from your blacklist.