Comment by Defletter

Kotlin can be fairly pleasant to write but it's so incredibly unpleasant to inspect. For example, Ktor is the Kotlin backend framework, but good luck figuring out how any of it works. It's a complete mess of "higher-order functions", extension methods, and other abstraction-hell as to make it extremely difficult to figure out what is executed when and under what circumstances. Basic Kotlin code is fine, great even, but once people stop writing Kotlin as Java developers, but as Kotlin developers, then it goes downhill fast.