[lilydjwg]

Because:

* Some languages don't run on some platforms, e.g. C# doesn't work well on Linux.

* Some languages are hard to build (for real projects), e.g. C or C++ projects, Python with C extensions on Windows. I don't have a good time to build Haskell projects (on Linux) either.

* Some languages require a huge runtime (either install seperately or bundled), e.g. Java. They take a lot of time to download and install, and occupy a lot of disk space and memory.

[mwcampbell]

> C# doesn't work well on Linux.

Not true anymore. .NET Core, including ASP.NET Core, works just fine on Linux.

[k__]

I just read good about Mono.

[xnyan]

Mono is great. .NET core is also underrated to the detriment of all imo.