I know that uint was chosen to document that it can't be negative (not sure why
the "8" was chosen, though). That's pointless in languages that don't enforce
this though: you can subtract 1 from uint8(0) and you'll get something that
doesn't make sense; that's not any better than getting -1. I'm not a fan of
using unsigned types in general (at least in languages like go or C++), and they
usually just make the code more cumbersome without real benefits.