> If you don't like them, why don't you add "Use of implicits forbidden" to your coding style guidelines, and check in code-reviews, and add a "grep implicit" check to your CI setup that refuses to commit Scala code with implicits?

Because Scala libraries that do useful stuff are infested with them. Akka loves the things.

> main complaint

They obscure complexity, pretending that complex stuff is simple. It makes simple stuff trivial but complex stuff harder.