That's not an anti-feature because of cleverness. It's a failure of engineering. Just like everything else, clever code needs to be encapsulated behind a good interface, be well documented, be well tested.

> if you randomly come across it most developers won't be able to easily understand how it works

So document it.

> uses undefined behavior

So fix the undefined behavior. Use memcpy or bit_cast.

> gives a suboptimal result

That's probably intentionally sacrificing accuracy for speed. Document it.

> doesn't have any meaningful comments

Then add it.

Clever algorithms is never the problem by itself. It's undocumented unencapsulated clever algorithms with unknown bugs.