I don't like unnecessary layers. Interpreted languages waste silicon and energy. I've heard startups justify using Ruby or PHP by saying "servers are cheap", which is just a bad engineering mindset.

Instead of building PHP apps on a PHP platform built in Go, people should just build apps in Go. Or in C++, D, Nim, F#, C#, or even Java 8 or 10 with that new AOT compiler. (I think F# and C# can also be compiled in advance with CoreRT, but even if they can't, they're a huge upgrade over any interpreted language.)

I would mention Rust except that it's terrible. All popular programming languages in our timeline are bad, and deter millions of smart people from the profession. But Rust is extraordinarily bad and should be replaced.