I wonder if there would be a chance with the cutover to allow global mods to add users to other groups, where the group is anything less than moderator.
Idea being that when a user is banned, the mod doing the banning can also add the offending user to the Banned group. This would save the Admins a bit of time, and also tag the user as banned so they don't get banned again by another mod ; this seems to happen enough for me to notice it.
And while we are at it, mod access to user email and posting IP; purpose to check dodgy users against listings on
http://www.stopforumspam.com.
There is an extension for phpBB to query SFS -
https://www.phpbb.com/customise/db/exte ... orum_spam/ - I suppose that's a bit much to hope for...