> I found myself fighting the language semantics in C# way more often than Java

What's an example? I find C# quite well designed despite the Chinese menu of features.

> Java is remarkably consistent and really doesn't have any sharp edges. Even with generics and type erasure [...]

These back to back with a straight face...What is a sharp edge in your mind?

A sharp edge is writing meta typesystem code infolving covariance, invariance etc

Saw that in a typescript repository

It's ok when it's part of a very specific library, it's not ok using it as part of usual project code