I have worked it out, following gasbag/mightygob's mistake.
mightygob is gasbag's alter ego, and eeyore is a**e end's alter ego.
They need the pseudo support from multiple usernames to bolster their failing egos and their non-existent arguments.
I would like to know why we cannot all have the same privileges as those members of the cc forum. It does appear to be a trait of the bigoted plumbers from the cc forum that have this multiple username privilege.