If we discover some responsibilities we want for our SystemAuthor besides its #initials, I'll welcome it. Until then, I'd be happy enough with:
Smalltalk authorInitials
Well, even if SystemAuthor held a single piece of info (and the plan was to hold both initials and full name), that would be sufficient to remove two class vars from Utilities. A pair of large nails in its coffin!
As it would if we simply moved them to SmalltalkImage.
Either way, fair enough. Your call.