As retarded as it can get it would probably help quake greatly. The half life games have had this for a long time and it is a really easy way to build communities. Throw a bunch of people with mics in a large server and in no time you have a self sustaining community that lasts for years. It's also just useful for getting people to use at least a little teamwork. playing quake on pubs has always felt pretty dry and disconnected compared to hl games.
Listening to obviously adult men throw abuse at each other while playing a video game was more awkward than i'd thought it would be (talking about the first link here).