Yeah, I try to compensate for this with a few rules that I undoubtedly fuck up:
* Each character has very visually distinct designs (ideally each is as distinct as I can reasonably make them, to the point where I have different artists do each one)
* The names have meaning (Aoi means blue, Aoi's hair is blue)
* Each character has an archetype that corresponds to a facet of how I understand technology, and their interactions are intended to reflect those internal disagreements or touch on the intentionally placed "learning lies" (the simplifications of how things work intended to give people a starting point for understanding an abstract thing that can later be discarded when they dig into the details and realize that shit's actually complicated)
I've been idly considering adding something to the message footer in faint text with a tl;dr like "(the student)" for Aoi, or "(the well-intentioned forum troll)" for Numa. Would that help?
I originally was kinda hesitant to do this under the axiom that if you have to explain your art, you fucked it up. I'm willing to concede that it's probably a bad axiom for me to follow here.