There was an old lady 6 about unoptimized behavior in VB6 and why is wasn't necessary to do so. I had to write a wrapper for it which was optimized in my code. Was it harder to read? Yes. Did it produce a significant performance improvement? Also yes.

Software development is about tradeoffs. Demoing one way to improve a simple function helps others trunk how they write code, and more importantly why they wrote specific code