Hi,
I heard that on stewards' private wiki Special:Block has a feature called "Disable user account" with the following description: "This page allows you to deactivate an account blocking write and read access from a specific IP address or username or to prevent the further use of an account. A deactivated user will be unable to log in to their account." Could you add this feature to https://arbcom-fi.wikipedia.org ? That would be very useful indeed and save us from the trouble of hassling with passwords when there is a need to deactivate accounts of former fiwiki ArbCom members.