[rustnote]

People love writing Rust, if they want to try rewriting stuff why not? Might end up better might end up worse, can't hurt. I doubt it's out of spite for other languages, think it's just out of personal passion and curiosity.

[lionkor]

Of course! I also write / rewrite / reinvent lots of things, for fun or out of curiosity.

The issue with this topic specifically is that these rewrites are considered a solution to a plethora of extremely difficult problems (safety, etc.).