I don't know exactly what the point is, but I concur with the assertion these names are pseudonyms 100%.
I have legitimately had the "same" person give me absolutely, 180 degree change, contradictory information within the same ticket.
Maybe it's a bid to make the team look small and personal, like a "family."
Maybe it's just the way things have always been and nobody at Netdragon wanted to change it.
But the odds of the exact same 3-4 people working the exact same job for, in some cases going on 20 years, at a company that has had the roller coaster ride Neopets has? I just don't see it. No, it isn't impossible, but the likelihood is really low.