The one specific concern I have is that some languages are readable without you knowing about the language's syntax and primitives, because it apes them from somewhere else; K is different and thus you can't apply your past knowledge to read it like you might usually be able to do.
That's fair. On the other hand, if a language is from a different paradigm than mainstream languages, there's not much "aping from somewhere else" that can be done. I mean, K could ape things from APL, but that doesn't help most of us. (I guess it helps those that know APL...)
I suspect that looking like C or ALGOL would not be all that useful for K (or Lisp, or Haskell, or Forth). The semantics are too different. A surface similarity in syntax isn't enough to bridge the gap in a meaningful way.
