UIDs serve as unique identifiers, no matter how crappy the program is. Other values that serve the same purpose include, but aren’t limited to, all kinds of order numbers, transaction receipt numbers, and transfer reference numbers.

No matter what kind of program it is—even the crappiest little app—there should never be a problem with unique identifier collisions.

It’s like that “database collision” bug in the DZ community decades ago. It’s hard to imagine that we’re still seeing such a basic bug in 2026, and that it took so long to be discovered.

Once again, it shows us just how amateurish the world can be.

It’s just like that engineer’s laptop incident last time: it would’ve been better not to explain. The explanation only made it look even more amateurish and ignorant.