Originally, Tyler and Data wanted a Teamspeak where all of us in Discovery could get together and do stuff in game while being on it. Which is what it started out as. Later, over time, many of us brought real life friends here and used the teamspeak for more than just Discovery. It then became much more than just an extension of this place.
So now, while serving as the main teamspeak server for a major part of this community, it also houses many other people who don't currently play this game and may never play it again. This is neither an official extension nor a friends only thing. This is a Discovery community AND friends thing.