On projects where I am an admin, and am about to block a user account, I am asked to set an "Expiration" time. I am also given the option:
Automatically block the last IP address used by this user, and any subsequent IP addresses they try to edit from
In such cases, I often want to block an account (e.g. a spam- or vandalism- only account) indefinitely, and their IP address for a few days.
My current workflow is to block both for a few days, then to re-block just the named account, indefinitely.
It would be better if the software allowed me to set separate expiration times for the named account and for the IP address.