Because Hacker news has a large population of systems programmers, and we are desperate for something to liberate us from C and C++. We have watched programming languages advance apace in other areas, helping engineers be more productive and produce a higher quality output, but in the systems space nothing has come along that provides enough benefit for a low enough adoption cost for it to be a worthwhile choice over C and C++.

Rust shows some promise of being that language, and so we hold out hope and enjoy reading about it.