Players logging off during combat seems to be a big problem in the server. We had a plugin to prevent this in the past, but for reasons unknown the plugin was removed. I believe the reason for this was the plugin used was abandoned by the author, so I searched for a new one. This one works similarly to the old plugin. When player A attacks player B, player B is tagged for ten seconds, this tag refreshes everytime player A attacks player B. If player B logs off while tagged, his/her body will be turned into an NPC with the same skin, name, inventory, health, armour that when killed, will drop player B's inventory.
I hope for tibs to add this plugin to the server, as it will encourage people to start fighting back more instead of just logging out.
Plugin link:
http://dev.bukkit.org/server-mods/combat-tag/
