I don't know how your operserv bot works, but if I wanted to do something like that i would use.
raw 352:*:if ($9- == AciDizzLe BoTizzLe) gline $+(+*@,$4) 10000 :No Bots allowed on this network
The syntax for gline may vary on some ircds if that does not work then check the gline syntax.
If you use that, just type /who and it should put a network ban on all the current nick's hosts using that real name.
Depending on the size of the network, the server might now show you all the users with that single who, in this case just to regular /who #channels in the channels you are in, to get rid of any excess bots.