This wasn't the only reason why ERT was made randomized; it was also to avoid people who had CentComm characters that were active on the station. Generally, as a rule of thumb, CentComm characters are forbidden by regular players and only allowed for admins--and that is still a veryyy touchy subject in and of itself (and most of the admin characters that have ties to CentComm are superrrrrrrrrr old); having character slots means this can and *will* return, as there's absolutely nothing preventing someone from using literally the same character in both slots. This isn't something we want to encourage in the slightest.
Then... Put a rule against having the same character name?
And ban from ERT or change the damn name if someone doesn't follow that rule.