So it didn't try to associate related accounts? Maybe at one time the banned person had IPs associated with those members. If so then it could have watered down based on every IP the banned member has been on.
That's exactly what it does on the RP site I run does. If I ban any member, even by IP. Every IP associated with it and all accounts that have ever been registered with it get banned until we go through and pass them through the ban.
