There are a couple of bugs with nicknames in mulltplayer!
1)First of all sometimes when a player leaves or comes instead of displaying his name at the bottom of the screen it says:
[e]gt[,] or something! I don't know what triggers that to be honest! Here's what I mean: http://prntscr.com/9tkxjq
2)In addition to this at random times at the right corner of the screen displays "Empty has left the game" (usually when you create a game.)
3)Also if you enter a game while another player is chatting instead of their nickname I think his skin's name will show up rather than his nickname! For example: These are the people included in a random match I've entered: http://prntscr.com/9tkw61 And here is what show up when I joined: http://prntscr.com/9tkwje
All of these seem weird to me! Anyways that's all for now!