Earlier quoted context omitted.
I would add to this: skills mean nothing if you don’t use them. OP made a site with a bunch of calculators. Their critics didn’t make that!
We're busy building real software, not toys. I routinely write all kinds of calculators in my game development, in addition to having 100x more complex code to contend with. This task is as trivial as it gets in coding, considering computers were literally made to calculate and calculation functions are part of standard libraries. OP definitely didn't use Claude to implement math functions from scratch, they just did…
I'll keep learning and try to make this less of a toy over time. And hopefully I can bring what I've learned from years in investing into my next product to actually help people. Thanks for the perspective.