Bans - Each time a user is banned PunBB should record who banned user!

I'm running a forum with a lot of users and moderators.  I was shocked to see that PunBB doesn't record which moderator banned which user and when.   I would think all that information would be increadibly necessary to run a successful forum.

Please add the ability to record which moderator / administrator banned which user and when to the  admin_bans.php page.