This also affects TextChannels that are two different instances but have the same name. If a player is in a TextChannel named “Group”, and there is another TextChannel instance also named “Group” that the player is NOT in, they are treated as the same channel and the player can see the chat in each channel.
This is problematic for games that allow players to create a custom TextChannel, or if you want multiple TextChannels named “My Team”, but different players are in each one.
The whisper channel customization was only the prefix name looks. It uses the default system but a script that checks for added channels that are not RBXGeneral or RBXSystem. There is no changes in how whisper channels are created as it still uses RBXWhisperCommand with no added connections.