[dkersten]

> Compilers know it's const

I can still assign to it. Sure, you can argue that if the code is complex enough that you might accidentally do that without it being obvious, then the code should be simplified or split up, but that's besides the point. If its const, the compiler will complain, if its not, it will silently let me. Nobody can write ideally-factored code all of the time and following good consistent practices helps. Also, I hear arguments like that all the time, but so much of actual real-world shipped code breaks these "rules", so I'd rather be pragmatic and choose a style that improves otherwise imperfect code.

Its also as much a hint to future me that the variable is intended to not be modified.