You are in your own world, but connected to a chat server. When you press <TAB> inside the chat your messages will be directed to the chat server.Ok.. so I am a complete noob to FTB.
I just loaded up this pack and logged into a freshly created world.. and I can see people talking in IRC? .. I think? .. am I on a server with other people? ..
I am SO confused.
In case you don't like it, just disable the mod EiraIRC in the FTB launcher.