> ZXCV is positional, [C]opy having a nice mnemonic is more of a happy coincidence...
ZXCV is actually half positional/mnemonic, half graphical-as-letters, a bit like old-fashioned smileys: X for cut looks like opened scissors, and V for insert looks like the downward-pointing “insert here” arrow-like mark editors and teachers use(d?) to scribble onto others’ texts.
ZXCV is positional, [C]opy having a nice mnemonic is more of a happy coincidence than a design decision in it's own right.