I don't have money, so if no one can or will do this for free, it's fine.
I would like a mod that would give an option to auto-prune members from membergroups given certain specifications. Such as Remove users from "Awesome" membergroup if they have been inactive for 30 days or more. Doesn't delete their account, just sets them back to Regular Members membergroup.
Preferably the options for this would be available in the Moderator Center under View Membergroups or a similar option.
Admins would have permissions for this mod
Moderators of membergroups would be able to have permissions for this mod, but only for the membergroups they moderate.