Why wouldn't Frontier just do what every other MMO with pvp in it do...
If you log out in combat (you have been damaged by weapons within the last X minutes), your ship stays in game, and still faces consequences even if the players client is closed. So if someone really needs to quit because the boss walked into the office, they could do so, even if in combat. Their ship, if being engaged by anyone else would remain and stay vulnerable for X minutes. If you emergency close client, crash, or disconnect and haven't been engaged within the last X minutes, the log out functions as it does currently.
Simple solution, no bans required, people will stop weaseling out of engagements. This would make the Open Play more fun.
If you log out in combat (you have been damaged by weapons within the last X minutes), your ship stays in game, and still faces consequences even if the players client is closed. So if someone really needs to quit because the boss walked into the office, they could do so, even if in combat. Their ship, if being engaged by anyone else would remain and stay vulnerable for X minutes. If you emergency close client, crash, or disconnect and haven't been engaged within the last X minutes, the log out functions as it does currently.
Simple solution, no bans required, people will stop weaseling out of engagements. This would make the Open Play more fun.