ever so often we see "I am not usong a fast clock, why this problem"

and you respond correctly
high frequency (frequency = dv/dt), all passive components become some combination of LCR. Resistors, capacitors, inductors, and (as you just pointed out) wires all become little completx LCR circuits in and of themselves. Understanding this is crucial to developing hi frequency circuits.

however the last statement WILL be misinterpred by some

rephrasing your last stement:
Understanding this is crucial to developing fast dv/dt circuits

and once more
Understanding this is crucial to developing circuits with fast rise and fall times

Erik