1) Be able to specify the skill of yourself while creating your account: Beginner, Average, or Advanced
This would allow players to find other players of the same skills and prevent beginners from being kicked
out of lots of games.
2) Have a [mod] tag at the beginning of all the moderators names.
3) Be able to right click a player and send them a one-line message. (Many times a player is in a game and you don't know which one. You can't find them, so you look at all of them one by one. This would allow you to tell the player that you're on the lobby and allow simple communication that can be used at all times.)
4. In the lobby game list, have the 'Players' column be separated into two different columns: Players and Observers