Dave, the "alter egos", are the group of "guests" who swarm round your little group.
I am reliably informed that the nameless one has numerous Mudcat guest personas and I know from reading his posts that there is and has been collusion with associates like the Seaham Cemetery troll. Most of these posts have been kindly deleted by admin, but I have them on file.
I am sure you are above THAT sort of childishness