If add friends plugin will prevent friends killing each other to claim placed bounty on them. But when they join the server they have to type /friend add manually and most of em do not know about this and do not care if they are friends. They just create team via inventory menu and thats all. If somehow they manage to add as friends, they will remove them and abuse again the system. Ideas how to prevent this.

2 years ago, and this is still happening, and not fixed. I wonder why this hasn't gotten the unmaintained stamp yet, the plugin is clearly broken and is only rewarding those who have the bounty placed on them.