reason behind leaving the game?
They won't won anything and just lose time and/or just getting reck all over again instead of go to play other game.
The problem with blockwars is a team game,compare it to other team games that are properly games(r6,overwatch,etc) in these games if someone leave it will have a great impact,that is why there they punish leaving a match with x minunes where you can't play,etc;implementing that in blockwars would be difficult and/or make it more difficult to new players that only enter the server to play and don't even know how to make a cubelet,how to play tower defense,how to capture the flag,or don't know english and how the change the language even some of them don't know how to read(I am talking about little kids playing minecraft)