> I'm currently building a skyscraper on the foundations of a bikeshed.

Not sure if you are joking or not, but I often hear similar things and I believe that it misses the point. What constitutes a good foundation in software is very subjective - and just saying "foundation bad" does not help a non-technical person understand _why_ it is bad.

It's better to point at that one small rock (some ancient perl-script that no-one longer understands) which holds up the entire thing. Which might be fine until someone needs to move that rock. Or something surrounding it.