it happens enough times and they get tempbanned from the mode, with times scaling up until they are eventually permabanned if they repeat offenses They can't really do anymore than that, since they can't distinguish well between someones game crashing or them alt f4-ing. They similarly can't distinguish well between someones internet connection dying or them pulling their ethernet. There needs to be enough leniency for people who have issues with it that aren't their fault. Were that not the case, and they could actually find a way to distinguish those, I would say leavers and cliff jumpers should be booted from the mode for good.