Clan support added. Use slash command "/clanmatch on" to declare a game a clan match. Clan matches are rated games between two clans. They cannot be started unless there are two even teams, where everyone belongs to one of the two clans. Results of clan matches effect both your personal rating and your clan's rating.
While on the pre-launch game setup screen, you can peek into the lobby without leaving your current game. Hold ALT or TAB to peek into the lobby. Try this feature, it's cool.
When a player joins the game, it shows the number of disconnects vs total games played in the "player X has entered" message. If you mouse-over a player's rating on the pre-launch screen, it shows their wins, losses, and disconnects.