This experiment is not for me to try but one of the senior
admins (Chacal) might want to try it.
1. Save a copy of the current banlist to file
2. then clear the banlist from the server
3. see if Zapout can then join and not get the ban message
4. restore the current banlist to the server
if he is able to join then we know his hash is in the banlist,
of course we still have to figure out what his correct hash is.