The person who leaves your duel match should have a 30 second cooldown before he can do another match. I literally have to use my second account because everyone keeps leaving.
Minecraft PC IP: play.cubecraft.net
I got into a similar situation yesterday. For some unknown reason to me, I happened to be in a match with the same player 5-6 times and they were leaving every time. Perhaps they didn't want to fight me or didn't like the kit I selected. However, even though it is a bit annoying, i'm guessing such people leave, because they might fear ,,scarier looking" players with challenging nicknames, ranks and etc. And I kinda get it, as I did the same back when I was pretty new. So, I don't think those people should receive a penalty if they want to avoid a duel.
